The U.N. refugee agency, UNHCR, says poor roads and the threat of further Boko Haram attacks is preventing it from helping civilians in a camp for displaced people in northern Cameroon. The UNHCR says hundreds of displaced people and aid workers are trapped in the camp, which militants attacked over the weekend, killing 17. The U.N. is calling on Cameroon’s military to help. On Tuesday, Cameroon officials, escorted by the military, brought food and humanitarian aid from President Paul Biya. The village and surrounding areas have suffered neglect because of Boko Haram terrorism. Schools, hospitals and some markets have been abandoned and access roads have become dilapidated.