Police in the U.S. city of Denver used force against supporters of the Occupy Wall Street movement as a crowd of some 2,000 stormed the Colorado Capitol, CBS reported on its website on Sunday.
Police clashed with protesters and used pepper spray and rubber bullets to break up the crowd, the report said.
Protesters knocked a police officer off his motorcycle and kicked other officers, Denver police spokesman Matt Murray was quoted as saying.
Seven protesters were reported to have been arrested.
In New York, Occupy Wall protesters struggled to stay warm and dry in their tent camps in Zuccotti Park as a rare massive snowstorm hit the city on Saturday, with temperatures forecast to plunge to freezing overnight.
