Dubai (AFP) - An explosion has killed two policemen and wounded six others in a Shiite-dominated area of Bahrain, the interior ministry said Tuesday, describing it as a "terror" attack.The blast in Sitra island, the scene of frequent clashes between security forces and Shiite demonstrators, comes days after the Sunni-ruled kingdom announced it had foiled an attempt to smuggle weapons from rival Iran. Join the conversation about this story »