(Image: @SALIHUHARUNA13 / TWITTER)

Cops in Mubi said the teenager detonated in the Adamawa state as worshippers arrived for morning prayers today.

Othman Abubakar, a police spokesman, said the young man detonated his explosives while mingling among the people.

Suspicion fell on Islamist extremist group, Boko Haram, who have been responsible for similar attacks in the past.

(Image: TWITTER)

Meanwhile there has been no immediate claim of responsibility.

The attack happened in a state where Boko Haram mounts suicide attacks in crowded public places, such as mosques and markets.

The terror group has killed more than 20,000 people and forced around 2 million people to flee their homes.

(Image: GOOGLE MAPS)

Most attacks by the group focus on the neighbouring state Borno state – the birthplace of the insurgency.

The group held a swathe of land around the size of Belgium in Borno.

This morning’s attack is the highest amount of people killed in the city since 18 people were killed in Borno in September.