Nigerian police said Saturday that gunmen have killed a dozen people when they razed a police station after failing to storm a jail in northeastern Gombe city

Nigerian police said Saturday that gunmen have killed a dozen people when they razed a police station after failing to storm a jail in northeastern Gombe city.
  
The city was put under lockdown, with no residents allowed to leave their homes, after the gun and bomb attacks in a botched attempt to free inmates.
  
"So far 12 people have been killed in the bomb and shooting attack, 10 of them were civilians and two policemen," police chief for Gombe state Gandhi Ebikeme Orubebe told AFP adding that the police station had been blown up with bombs.

No one has claimed responsibility for the attack.