Suicide bombers killed at least 68 people at a mosque and a market in northeast Nigeria, in a twin attack bearing the hallmarks of Boko Haram and a day after US President Donald Trump pledged greater support to fight the militants.

Abdullahi Yerima, Police Commissioner in Adamawa state, said a suicide bomber struck at the mosque and a second bomber detonated a device some 200 metres away as worshippers fled.

Ezra Sakawa, Chief Medical Director of Mubi General Hospital, said 68 people died and dozens were injured.Injured were transferred to the federal medical centre in Yola for treatment.