Three dozen protesters were arrested Saturday night in Denver on investigation of charges ranging from blocking streets to resisting arrest, according to the police department.

Arrests were almost exclusively for charges of failure to obey a lawful order, Denver police said, but some included interference with police authority, unlawful throwing of projectiles, and obstruction of streets.

Demonstrators protesting the Trump administration clashed with Denver police as thousands marched downtown, with some participants throwing projectiles at officers.