NEW : 42 people are killed in a separate attack in Iraq 's Shiite region . Iraq has seen a sharp increase in tension between its Sunni and Sunni populations . A suicide bomber in a minibus attempted to enter the facility . At least 12 other people were injured while attending a funeral at the mosque .
NEW : 42 people are killed in a separate attack in Iraq 's Shiite region . Iraq has seen a sharp increase in tension between its Sunni and Sunni populations . At least 12 other people were injured while attending a funeral at the mosque .