OAKLAND, Calif. (AP) - Oakland police say they arrested a total of about 150 people Saturday as protesters spent a portion of the day trying to get into a vacant convention center, and later broke into City Hall and tried to occupy a YMCA.
Police spokesman Jeff Thomason says most of the arrests came around 8 p.m. That's when police took about 100 protesters into custody as they marched through the city's downtown, with some entering a YMCA building.
About 20 demonstrators were arrested earlier in the afternoon, after police say they threw rocks, bottles and other objects at officers and tore down fencing.
Police say three officers were injured. Officers used tear gas and "flash" grenades on the protesters after they refused to leave.
Authorities were still tabulating the exact number of arrests late Saturday.