Video courtesy: http://www.youtube.com/user/brettnchls, http://www.youtube.com/user/larrytaitai<br /><br />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.<br /><br />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.<br /><br />RT on Facebook: http://www.facebook.com/RTnews <br />RT on Twitter: http://twitter.com/RT_com
