TOPSHOTS A Bahraini forensic police officer inspects the site of a bomb blast in the village of Sitra, south of Manama, on July 28, 2015. The blast killed two Bahraini policemen and wounded six others in an area often shaken by clashes between security forces and Shiite Muslim protesters, according to the interior ministry. Bahrain has seen frequent unrest since the minority Sunni rulers of the small Gulf kingdom crushed a Shiite-led uprising four years ago. AFP PHOTO / MOHAMMED AL-SHAIKH