Video: Several Parts of Northern Portland are Engulfed in Flames from Rioters

PORTLAND, Ore. — Portland Police Bureau officers arrested 16 people at a protest that was declared a riot in North Portland Sunday night. One of the people arrested is Demetria Hester, the woman who says Jeremy Christian assaulted her the day before he fatally stabbed two people on a MAX train in 2017.

According to police, all 16 were arrested for disorderly conduct, interfering with a peace officer or both.

This was the second night in a row police declared a riot outside the Portland Police Association building. Police said demonstrators threw commercial-grade fireworks at officers who were trying to clear the crowd from the area.

The demonstration began at around 8 p.m. in Kenton Park. The group of about 200 people marched at 9:30 p.m. toward the Portland Police Association Building on North Lombard Street.

Police said they warned the crowd to not engage in criminal activities such as vandalism or setting the building on fire. However, they said it only took three minutes before protesters began blocking streets with dumpsters and fences, causing an ambulance to detour around the obstruction. They also lit a fire on the sidewalk outside the building, police said.

Officers declared an unlawful assembly and told people to leave the area. That's when police say protesters began launching eggs at officers.

Oregon State Police troopers moved people who were refusing to leave, Portland Police Bureau said. While leaving the area, some people threw commercial-grade fireworks, injuring at least two officers.

Police declared the situation a riot at 10:10 p.m.

President Trump on Monday urged Portland to "bring in" the National Guard, after months of unrest, calling the city "out of control," and warning local officials that they will "be held responsible."

"Portland, which is out of control, should finally, after almost 3 months, bring in the National Guard," Trump tweeted Monday. "The Mayor and the Governor are putting people's lives at risk. They will be held responsible."

He added: "The Guard is ready to act immediately. The Courthouse is secured by Homeland!"

Trump’s tweets come after a riot was declared in Portland, Ore., on Sunday evening, as officers tried to quell unrest that saw protesters march on a police union building, throw objects at officers, block a road, and set dumpster fires, according to reports.

Live video had showed multiple dumpster fires had been set near the building, less than half an hour after police tweeted that “criminal activities including, but not limited to, vandalism, unlawful entry to the building, or fire starting," could be subject to arrest, the use of tear gas and/or crowd-control munitions, according to The Associated Press.

Protests over racial injustice and police brutality have occurred nightly for more than 70 days, since the killing of George Floyd in Minneapolis police custody in May.

Democratic Mayor Ted Wheeler said violent protesters are also serving as political “props” for the president, while the president has called the protesters “sick and dangerous anarchists” running wild in the city’s streets.

Even Mayor Ted Wheeler, who has been completely worthless as a leader in Portland, is calling out the violence for what it is.