Hundreds of Yemeni demonstrators storm the U.S. embassy in Sanaa -- angry over a film mocking Islam's Prophet Mohammad.<br/> <br />Security guards fired rounds into the air in an attempt to disperse the crowds, who smashed windows and broke through the compound's main gates.<br/> <br />Police also fired water cannon at the protesters.<br/> <br />Yemen's embassy in Washington D.C. said no casualties were reported in the attack.<br/> <br />And an embassy statement emailed to Reuters added that security forces had since restored order at the complex.<br/> <br />The protests follow Tuesday night's storming of the U.S. consulate in Benghazi, where the American ambassador and three other staff members were killed -- and ongoing clashes outside the United States embassy in Cairo.