Police in Oakland, California, have used tear-gas and flash-grenades as a 2,000-strong Occupy Oakland march turned violent, with some protesters claiming that rubber bullets were also fired into the crowd. At least 300 people were arrested.
The demonstrators had attempted to take over vacant buildings to use as their headquarters, they also broke into City Hall and tried to occupy a YMCA. Police spokesman Jeff Thomason told media most of the arrests came around 8 pm local time. Police took many protesters into custody as they marched through the city's downtown area, with some entering a YMCA building.