Police say at least 24 worshippers have been killed in an attack on a mosque in northeast Nigeria.
Adamawa State police spokesman Othman Abubakar said an explosion occurred during prayers on Tuesday afternoon and many people died as they fled and were caught by a second blast.
Abubakar said the scene in Mubi has been cordoned off by anti-bomb squads and security personnel.
Local residents say they saw a young man wearing a vest with explosives entering the mosque with the worshippers. One resident says the mosque's roof was blown off.
Many are blaming the Nigeria-based Boko Haram extremist group for the attack.
The jihadist group carried out an attack in Maiduguri on Thursday, capital of neighbouring Borno state, which killed four people.
