A bomb blast in a Shi'ite Muslim village in Bahrain late on Friday injured three policemen, the interior ministry said, in a further sign of anti-government sentiment since the opposition boycotted elections last month. A 2011 uprising by mainly majority Shi'ites demanding more democracy in the Sunni Muslim-ruled Gulf Arab kingdom, where the US Fifth Fleet is based as a bulwark against Iran, was crushed but sporadic unrest has continued, including bomb attacks. Friday's bomb explosion occurred in Bani Jamra, a Shi'ite village northwest of the capital Manama and was described by the interior ministry as a 'terrorist blast' in a statement posted on its Twitter account. The statement said authorities were taking 'necessary steps', without giving further details.