OAKLAND, Calif. -

Workers, patrons and property owners clashed with a few dozen May Day protesters who stormed a downtown Oakland diner in an attempt to shut down the restaurant.

The two sides scuffled briefly TuesWorkers, patrons and property owners clashed with a few dozen May Day protesters who stormed a downtown Oakland diner in an attempt to shut down the restaurant.

The two sides scuffled briefly Tuesday morning before police moved in, and the restaurant stayed open. Demonstrators were upset that the diner had not closed its doors despite calls for a May Day "general strike."

After police intervened, protesters continued marching toward Oakland City Hall chanting "Shut it down!"

The restaurant, Rudy's Can't Fail Cafe, is co-owned by a member of the band Green Day.

Minutes earlier, protesters and police faced off as three masked\ demonstrators climbed to the roof of another restaurant and tried to get inside.

The scenes are among several sites where small groups of protesters have gathered across the city.day morning before police moved in, and the restaurant stayed open. Demonstrators were upset that the diner had not closed its doors despite calls for a May Day "general strike."

After police intervened, protesters continued marching toward Oakland City Hall chanting "Shut it down!"

The restaurant, Rudy's Can't Fail Cafe, is co-owned by a member of the band Green Day.

Minutes earlier, protesters and police faced off as three masked demonstrators climbed to the roof of another restaurant and tried to get inside.

The scenes are among several sites where small groups of protesters have gathered across the city.