People continue to protest across the country this week after the election of Donald Trump. In Portland, thousands of protesters were on the streets of downtown on Thursday night. What began as a relatively peaceful demonstration, eventually turned into an ugly riot.

The smashing of windshields and windows, spraying of graffiti and igniting of fireworks led to the police declaring the situation a riot.

“Due to extensive criminal and dangerous behavior, protest is now considered a riot. Crowd has been advised,” the Portland Police Department tweeted.

As rioters damaged cars at a Toyota dealership, as well as destroyed other businesses and property, police encouraged peaceful protesters to head back toward Pioneer Courthouse Square. Several people were detained by police as the riot continued.

Lots of windows shattered. #NotMyPresident pic.twitter.com/mE1Dr2ZMsy

— Bradley W. Parks (@Bradley_W_Parks) November 11, 2016

Protest is a dumpster fire. Literally. Riot in the pearl district. #TrumpRiot #Portland pic.twitter.com/hyi4sMiL7f

— Mike Bivins (@itsmikebivins) November 11, 2016

Portland #NotMyPresident protest declared riot by police. Drivers attacked. If attacked, lethal force OKd.pic.twitter.com/1E1EH2vW3K #MAGA

— Jeff Rainforth (@iResistAll) November 11, 2016

Portland protesters continue to bash in windows in what can only be called a riot now #Portland #pdx #trump #protest #riot pic.twitter.com/PwcuKEpjyz

— William Gagan (@WillyFoReal) November 11, 2016