Militants unleashed a brutal 10-hour massacre on two Nigerian villages, Woro and Nuku, weeks after residents ignored a letter warning of their arrival to spread an extreme form of Islam.
Gunmen on motorbikes systematically moved door-to-door, shooting residents and setting homes and shops ablaze in the predominantly Muslim communities. Villagers told The Associated Press that attackers entered a mosque, announced the call to prayer, and shot everyone who turned up.