At least 100 people have died with dozens more injured after terrorists attacked a busy mosque in the Nigerian city of Kano during Friday prayers.

Witnesses reported seeing two or three bombs explode before armed militants attacked those worshipping inside the Central Mosque.

One witness told Nigeria’s Channels Television how two cars exploded outside the mosque and gunmen opened fire on the worshippers as prayers were about to begin.

One AFP reporter has reported counting 92 bodies at the morgue at Kano’s Murtala Muhammad specialist Hospital, but victims have been sent to at least three other hospital and so the total number of casualties may be far higher.

Prayers at the central Mosque are often led by the Emir of Kano, an influential Muslim figure, who recently condemned the actions of Boko Haram and called for the public to arm themselves against Islamist militant group, which has led a violent insurgency in Nigeria for the last five years, including attacks on Kano.

The Emir had not planned to lead prayers at the mosque today because he is currently in Saudi Arabia.

No group has yet claimed responsibility for the attack.