Riot police clean the streets from road blocks set up by anti-government protesters during clashes in the village of Sanabis, west of Manama, February 12, 2012. Bahraini police fired tear gas and sound grenades to break up protests by anti-government demonstrators as they staged rallies and tried to march towards Manama's Pearl Roundabout, centre of a failed uprising last year. REUTERS/Hamad I Mohammed (BAHRAIN - Tags: CIVIL UNREST POLITICS)