At least 35 people were killed in a twin suicide bomb attack at a camp for people displaced by Boko Haram's Islamist insurgency in northeast Nigeria on Tuesday, the head of the Borno state emergency management agency told AFP .<br />The bombers were said to have been female.<br />Some media outlets reported the death toll as high as 56.<br />"We recovered 35 dead bodies and 78 injured following the attack on Dikwa IDP (internally displaced persons camp) on Tuesday morning," Satomi Ahmed said.