A Christian leader in Nigeria is warning the government that it must stop the attacks by a radical Muslim group.

The president of the Christian Association of Nigeria, Ayo Oritsejafor, said that if the government won't put an end to the violence, Christian worshippers may take matters into their own hands.

"The church leadership has hitherto put great restraint on the restive and aggrieved millions of Nigerians, but can no longer guarantee such cooperation if this trend of terror is not halted immediately," he told journalists in Nigeria's capital Abuja.
         
The radical Islamist group Boko Haram has killed almost 500 people this year alone. The dead include both Christians and Muslims.