Several dozen people were killed Monday when a suicide bomber detonated an explosion at a school in northeast Nigeria, according to media reports. The Associated Press reported the bomber was disguised in a school uniform. The incident occurred at the Government Technical Science College in the city of Potiskum, the capital of Yobe state.

Officials said 47 people are reported to have died in the explosion. National police spokesman Emmanuel Ojukwu told Reuters: "There was an explosion detonated by a suicide bomber. We have 47 dead and 79 injured."

He said the Islamist extremist group Boko Haram was believed to be responsible. Health workers told the AP that some of the injured may require amputations.