At least 25 dead in Nigeria suicide bombing

Medical officials try to treat a victim of a bomb blast at a Catholic church near Nigeria's capital at Suleja General Hospital in Suleja, Nigeria, Sunday, Dec. 25, 2011. An explosion ripped through a Catholic church during Christmas Mass near Nigeria's capital Sunday, killing at least 25 people, officials said. A radical Muslim sect claimed the attack and another bombing near a church in the restive city of Jos, as explosions also struck the nation's northeast.(AP Photo/Dele Jones)

December 25, 2011 4:36:29 PM PST
A police commissioner says a suicide bomber has detonated his explosive-laden car in northeast Nigeria, causing an unknown number of injuries.

The attack Sunday was one of at least four explosions across Africa's most populous nation on Christmas Day.

A radical Muslim sect known as Boko Haram has claimed responsibility for attacks on two churches that left at least 25 people dead.

Local police commissioner Tanko Lawan said the suicide car bombing happened around noon in the Yobe state capital of Damaturu, targeting the headquarters of Nigeria's secret police in the area.

In the last year, Boko Haram has carried out increasingly bloody attacks in its campaign to implement strict Shariah law across Nigeria.