Gunmen bomb and shoot at mosque worshippers in north Nigeria's Kano

Gunmen exploded bombs and opened fire on worshippers gathered at the central mosque of north Nigeria's biggest city, Kano, for Friday prayers, witnesses said, in an attack that bore the hallmarks of the Islamist militant group Boko Haram.

"These people have bombed the mosque. I am face to face with people screaming," said Chijjani Usman, a local reporter who had gone to the mosque in the old city for prayers himself.