A suicide bomber has killed at least 11 people at a mosque in northeastern Nigeria, near the border with Cameroon. The attack comes as Boko Haram militants step up their campaign of violence in the region.
A suicide attacker blew himself up Wednesday during dawn prayers at a mosque in the Nigerian town of Gamboru in Borno state.
Officials confirmed at least 11 people were killed and the mosque was reduced to rubble.
"Only the muezzin has survived and we believe more bodies are buried under the debris," Umar Kachalla, a civilian militiaman, told the news agency AFP. "The death toll may likely rise."
The extremist group has killed around 20,000 people and displaced more than 2.6 million since launching an Islamist insurgency in Nigeria's northeast in 2009.
Nigerian President Muhammadu Buhari said in his New Year address that Boko Haram had largely been "beaten."
But despite losing territory to Nigerian troops, the jihadi group's fighters have continued to stage attacks on military convoys and towns, as well as carry out cross border raids into Niger, Chad and Cameroon.