Suspected Boko Haram militants attacked a mosque in Damboa town in Borno state, killing five worshipers and setting fire to the palace and residence of the district head; they were then repulsed by the military, which claimed to have killed 15 militants. “Hoodlums” among the estimated 30,000 attendees at Northern Youth Summit in Kaduna attacked campaigners for President Jonathan and event organizers, who escaped harm only because of their private security guards; hundreds of policemen refused to intervene.