Crews are working Thursday morning to clean graffiti off the west steps of the Colorado Capitol building that was left by marchers Wednesday night.
Police in Denver .
One of the arrests was for felony assault on a police officer while most were for destruction of property, police said on Twitter.
The international protest was organized by the Internet activist group Anonymous centered around Guy Fawkes Night.
Fawkes and others were arrested on Nov. 5, 1605 while attempting to set an explosion at the House of Lords in London, an event known as the “Gunpowder Plot.”
People were also arrested in similar marches in London.
In Denver, dozens of protesters marched from the Capitol to Union Station and back again before the arrests took place.
Jesse Paul: 303-954-1733, jpaul@denverpost.com or twitter.com/JesseAPaul





