A right-wing rally billed as "No to Marxism in America" was initially called for Sunday afternoon but then canceled over the weekend.

More than 100 protesters dressed in black have pushed their way past police barricades and into a Berkeley park.

They assaulted at least three people by punching and kicking them.

At least one of those attacked was a right-wing male protester who showed up for a "Rally Against Hate" event where anti-rally protesters vastly outnumbered the rally's supporters.

Police broke up the fights, using what appeared to be a smoke grenade to stop one scuffle.

The three people who were attacked ran behind police lines to escape.

The black clad protesters carried a large banner that identified them as anarchists.

Several people were arrested at Berkeley's Civic Center Park by police who have banned protesters from covering their faces and carrying a variety of items that could be used as weapons.