Portland Police Bureau continues to actively investigate violent political rally in central city on June 29.

VIA PPB - The three new suspects that Portland Police hope to identify are shown here. UPDATE: The Portland Police Bureau's detectives continue to "actively" investigate a number of assaults that occurred on Saturday, June 29, during a violent downtown protest.

The new suspects are described as a person wearing a black motorcycle helmet, a person wearing a black leather baseball cap and a man in a pinkish-red and white baseball cap.

"Detectives have received several tips and video footage from the public and these are much appreciated," officers said.

Anyone with information is asked to contact Detective Anthony Merrill at This email address is being protected from spambots. You need JavaScript enabled to view it. or at (503) 823-4033.

Read a previous update from Monday below:

VIA PPB - FROM LEFT: A female assault suspect, an male assault suspect shown near Sixth Avenue and Morrison Street in downtown Portland, and a robbery suspect. The Portland Police Bureau continues to investigate individuals "believed to be involved in criminal activity" during the riotous events surrounding a political protest in downtown Portland on Saturday, June 29.

"The acts of a select group of violent individuals do not define Portland, but do have a negative impact on all of us," said Police Chief Danielle Outlaw.

She continued: "We are determined to pursue every lead with the goal of arresting those who engaged in crimes and holding them accountable. The public should be aware of the time it takes to shift resources and address violence; it is not immediate and officers have to weigh many factors in their approach."

The Monday afternoon release of information may be intended to brunt the nationwide scrutiny and condemnation from some who say police did not do enough to prevent the day's violence.

Click here to read more on the recent scrutiny of Portland Police during Saturday's protest:

PMG PHOTO - A woman hurls liquid on prominent live-streamer Andy Ngo during a downtown Portland protest on Saturday, June 29. , Portland Tribune - News Ted Wheeler's adviser offers support to Andy Ngo, but says no 'physical evidence' of quick-drying cement Milkshake protest stirs up controversy across U.S. Police noted that, per Oregon law 181A.250, they are not allowed to film demonstration events unless a crime is occurring. At the same time, there is no law against covering or masking one's face in public or while committing a crime.

Authorities also say they are limited by the First Amendment of the U.S. Constitution, which enshrined freedom of speech and freedom of peaceful assembly into the Bill of Rights.

"Attention is given to balancing the safety of demonstrators, safety of officers and first responders, First Amendment rights, infrastructure, and property," officers noted.

Local critics aren't satisified. James Buchal, party chair of the Multnomah County Republican Party, slammed Portland Mayor Ted Wheeler for his "continued refusal adequately to police Antifa thugs that ran wild again."

"It is long past time for the federal government to invoke fundamental federal civil rights statutes, like 18 U.S.C. 241, that make it a felony for groups of people to run around in masks attacking other people for exercising their First Amendment rights," Buchal said.

PMG PHOTO: ZANE SPARLING - A person hits Andy Ngo with a sign during a political protest in downtown Portland on Saturday, June 29. , Portland Tribune - News Ted Wheeler's adviser offers support to Andy Ngo, but says no 'physical evidence' of quick-drying cement Milkshake protest stirs up controversy across U.S. The bureau additionally released more information regarding a PPB tweet claiming that protesters were mixing quick-drying concrete into their milkshakes. According to a release, a PPB lieutenant in the field noted "the texture and smell" of some of the material and determined it was consistent with concrete.

VIA PPB - The Portland Police Bureau said it received this email after it tweeted out a message about quick-drying cement in protesters' milkshakes. , Portland Tribune - News Ted Wheeler's adviser offers support to Andy Ngo, but says no 'physical evidence' of quick-drying cement Milkshake protest stirs up controversy across U.S. "We knew going into this event that milkshakes were going to be thrown at people," added Robert King, a former PPB commander and Mayor Wheeler's senior adviser on public safety.

While the brawling captured by videographers has drawn wide attention, King said police were largely successful in their stated aims.

"We were largely effectively in maintaining separation of the different groups," he said.

Read a previous report from Sunday below:

PMG PHOTO: KIT MACAVOY  - Men fight in the streets during a political protest that turned violent on Saturday, June 29 in Portland. Portland Police announced three arrests — and first-responders provided medical care to eight people — during the tumultous events surrounding a political protest in downtown Portland on Saturday, June 29.

Authorities said "multiple assaults" were reported, and the demonstrators' use of bear spray and thrown projectiles spurred police to also deploy pepper spray at times. Police said one bat was confiscated at Lownsdale Square, as weapons are banned in that park.

PMG PHOTO: KIT MACAVOY - A man bleeds from the face after a street brawl broke out in downtown Portland on Saturday, June 29. "Demonstration events are very fluid in nature and the management of these events is complex," Assistant Chief Chris Davis said in a news release.

He continued: "There are hundreds of peaceful free speech events in the City in a given year that do not result in violence. Unfortunately, today some community members and officers were injured. We are actively investigating these incidents to hold those responsible accountable."

PMG PHOTO: ZANE SPARLING - Live-streamer Andy Ngo grimaces in pain after being attacked near the Multnomah County Justice Center on Saturday, June 29. Medics with Portland Fire & Rescue said three of the injured people were police and three were taken to nearby hospitals for treatment. Police said two officers were pepper sprayed, an officer was punched in the arm and another sustained a non-life-threatening head injury after being struck by a projectile.

The most high-profile injured person was undoubtedly Andy Ngo, a famous live-streamer whose opinion pieces have been published in the Wall Street Journal and the New York Post.

Ngo's attorney, Harmeet K. Dhillon, wrote that Ngo had been admitted to a hospital overnight due to a "brain bleed." A GoFundMe created for Ngo has raised more than $110,000 in less than 24 hours.

The three Saturday arrests were not related to Ngo's attack, though a reporter for The Daily Caller quoted a police spokesperson as saying: "There is an open investigation on that incident, however."

MCSO PHOTOS VIA KOIN 6 NEWS - FROM LEFT: James Stocks, Gage Halupowski and Maria DehartHere's who was arrested:

• Gage Mackinnon Halupowski, 23, of Oregon City, was charged with first-degree assault, resisting arrest, interference with an officer and attempted assault of a police officer.

• James Kirkpatrick Stocks, 21, was charged with harrasment.

• Maria Caitlin Dehart, 23, was charged with second-degree disorderly conduct and harrassment.

Dehart and Stocks were released without bail from the downtown jail on Saturday, according to official records. Neither has a history in the local court system. Halupowski remains in the county jail as of Sunday, June 30. He was charged with possession of less than an ounce of marijuana in Klamath County in 2014, according to court records.

While the protest itself drew only several hundred attendees, the commotion has recieved wide attention in the national television news and in countless online publications, as well as million of views on social media.

PMG PHOTO: KIT MACAVOY - Portland police officers decked out in riot gear ride on a truck during a violent protest in Portland on Saturday, June 29. Of particular note: A Twitter report by the Portland Police Bureau, which was subsequently repeated in a news release, that milkshakes distributed to protesters contained a substance "similar to a quick drying cement."

Around 12:30 on Saturday, the Tribune witnessed another live-streamer who was doused with milkshake. The man was seen cleaning his clothes with a water bottle and then continued to film the day's events.

PPB did not immediately respond to the Tribune's request for comment regarding the milkshakes.

Read our report on Saturday from the scene below:

PMG PHOTO: KIT MACAVOY - Portland Police declared a civil disturbance on Saturday, June 29, after brawlers bloodied the street near Pioneer Courthouse Square. Portland Police declared a "civil disturbance" and ordered the public to leave the area after violent brawls left at least several people injured during dueling political protests in downtown Portland.

The chaotic mid-day scene on Saturday, June 29, was captured on video by Sergio Olmos, a reporter for Underscore working in coordination with the Portland Tribune.

As the crowd refused to disperse from the corners of Southwest Sixth Avenue near Morrison Street by 4 p.m., officers dressed in riot gear unleashed chemical spray and fired "pepper balls" into the mob, according to accounts from witnesses.

PMG PHOTO: ZANE SPARLNG - Protesters march near Southwest Morrison Street and Sixth Avenue during a rally that turned violent in Portland on Saturday, March 29. Authorities also warned that some of the demonstrators were lobbing milkshakes containing "quick-drying cement" and urged anyone hit by a substance to report it. Organizers of the liberal rally pushed back against that claim.

Earlier in the day, around 1 p.m., hundreds marched in the streets — aiming to confront a small band of conservative activists massed in Pioneer Courthouse Square. But the cavalcade was stymied by bicycle police who blocked access at chokepoints such as Southwest 2nd Avenue and Salmon Street.

Soon after, the first brutality erupted. Andy Ngo, a conservative media commentator based in Portland, was punched several times and splashed with liquid and Silly String while live-streaming. Ngo was visibly bleeding from the face after the encounter.

"I just got beat up by the crowd, no police at all, in the middle of the street, and they stole my GoPro," Ngo said in message to his 150,000 social media followers. He said later he would seek treatment at a local hospital.

PMG PHOTO: ZANE SPARLING  - Andy Ngo, a famous conservative on Twitter, was attacked by several people while live-streaming a political march and Antifa rally in Portland on Saturday, June 29.

The column of people, some wearing the trademark midnight colors and masks favored by Antifa, continued to march aimlessly through the streets, eventually making their way to the waterfront. Police continued to monitor the situation and apparently activated the sprinkler system as soon as the crowd arrived.

After leaving the waterfront and marching back to Pioneer Square, only a thin line of police separated the liberal and conservative groups. Orders to leave the street were ignored, and soon a rented U-Haul truck blasting music and bearing dancing protesters arrived, prompting police to line up a patrol vehicle in the truck's path.

The cordon held, but police were unable to prevent smaller pockets of people from intermingling — leading to the punches, kicks and drawn blood captured on video. PMG PHOTO: KIT MACAVY - Kerry Hudson, an activist who frequently attends Patriot Prayer events, holds a mega-phone during a rally in Portland on June 29.

Read a previous update below:

The beginning of the rally organized by left-wingers was largely peaceful, with attendees snacking on vegan milkshakes and dancing. A contingent from the local chapter of the Democratic Socialists of America marched to the square, and crowdmembers later changed "No pride for Proud Boys!"

"If I were young I would be in Antifa. They were kind enough to say I was just for being here," said Suzanne, a Portlander who has attended marches and rallies since the 1960s. "I even want the Proud Boys who are down the street to have free health care."

Olivia Katbi Smith, co-chair of the Portland DSA, told the Tribune that she hoped to promote the concept of "everyday anti-facism, since "antifa" can be an intimidating term.

"They are a real threat to our community, and we have to show up," she said of the Proud Boys. "If just one person acts on the violent rhetoric they spread, that could be fatal."

With plenty of officers with the Portland Police Bureau monitoring the situation, the crowd was mostly contained accept for a few tense moments with live-streamers.

PMG PHOTO: ZANE SPARLING - 'Nice try, Antifa punks!' cried a live-streamer who said he had had a milkshake dumped on him. One man with a stained shirt cried out that he had been milkshake'd: "Nice try, Antifa punks!"

Earlier in the day, officers asked a man with a bat sticking out of his backpack to leave the park, saying weapons were not allowed.

"What's the difference between me carrying a bat and them carrying a pistol," the man responded.

PMG PHOTO: ZANE SPARLING - Portland Police outfitted in riot gear blockaded streets to prevent unpermitted marchers from clashing during a rally on Saturday, June 29.

Read a previous update below:

Left- and right-wing groups are expected to confront each other during opposing protests on Saturday, June 29 in downtown Portland.

The Portland Police Bureau warned of "possible traffic distruptions" and announced that a presumably large "police presence" would be required in several sites throughout the central city.

Authorities say the actions are expected to take place starting at around noon in Pioneer Courthouse Square, along the waterfront and in Chapman Square near the federal courthouse, county jail and Portland City Hall. Police said there were no permits issued for street marches or gatherings.

"The intent of law enforcement during these and all demonstration events is to provide a safe environment for all participants and non-participants to ensure the peaceful exercise of the First Amendment," officers said.

"People engaged in demonstration march activity should remain on sidewalks and obey traffic laws," they continued.

In a statement, Rose City Antifa wrote that the Proud Boys were gathering for an event billed as "The Battle of Portland Part Two," which apparently commemorates the raucous events of June 30, 2018, when a rally for then-Washington Senate candidate Joey Gibson similarly went off the rails, leading to nine arrests.

"The fact is, when white nationalists and fascists seek violence, they will not go home without it," Rose City Antifa wrote. "Their social media posts make it clear that they want a fight."

Pop Mob, another liberal organizing group, announced an event on Saturday dubbed "MILKSHAKE: Shake Back the Streets."

The last notable clash involving Antifa and conservative groups in Portland occurred on May 30, when a brawl broke out near the patio of Cider Riot, leading to a $1-million lawsuit.

A Tribune reporter is on the scene, and this post will be updated. Follow along on Twitter here.

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