Between 30 and 60 people have died in a series of bomb and gun attacks in the north-eastern Nigerian city of Damaturu. The attacks, which are being blamed on the militant Islamic group Boko Haram, follow a series of violent attacks across Nigeria in the past few weeks.
Gunfire lasted into the night and many residents have fled. The headquarters of the Yobe state police was among the targets. The attacks come shortly after security forces were targeted in the nearby city of Maiduguri, an incident that was also blamed on Boko Haram members.
There is growing pressure in the south of Nigeria for the government to intervene and stamp out groups like Boko Haram. Nigeria is divided between a largely Christian south and a largely Muslim north, and extreme violence has in recent months been an increasingly common event as the two sides struggle to live together.