Over two hours after the Denver "No Kings" protest officially ended, a group of protesters clashed with Denver police officers.

Dozens of Regional Transportation District routes were detoured or delayed throughout metro Denver on Saturday as thousands of Coloradans gathered for “No Kings” protests.

Denver police arrested 18 individuals during an "ICE Out!" immigration protest, with tensions over ICE policies sparking demonstrations and officials responding to potential conflict.

Denver police now say officers arrested 18 people during protests near downtown on Tuesday over immigration enforcement.

Denver police arrested 17 protesters on suspicion of graffiti, interference with law enforcement, obstructing streets, throwing objects and assault, according to the police department.

Organizers have planned demonstrations in cities and towns across the country on the same day as President Trump’s parade in Washington to celebrate the Army.

Large crowds peacefully gathered in front of the Colorado State Capitol in Denver Saturday to take part in one of several anti-Trump “No Kings” rallies in Colorado and across the country.

The parade, honoring the Army’s long-planned 250th anniversary celebration and coinciding with Trump’s 79th birthday, is set to step off from the Lincoln Memorial under the threat of stormy weather in Washington and protests around the country tied to a turbulent week of immigration enforcement that has involved military deployment in Los Angeles.