An Air Force helicopter crashed near Bama in Borno state yesterday. Boko Haram militants killed 60 residents of Gaidamgari in Bama on July 19, in retaliation for the town’s refusal to allow the terror group to take its teenage boys as fighters. Boko Haram has reportedly taken over half of Borno state, and the group’s black Islamist flag is flying over Damboa, a town of 15,000 people near the Sambisa Forest. The military said it is not conceding any state to the terrorists. The government has closed some hotels and markets in the Federal Capital Territory until adequate security measures are in place.