Authorities appealed to the public to provide intelligence that will assist in recapturing the escapees.
Heavily armed men raided a jail in southcentral Nigeria and freed 240 inmates – almost everyone in the prison.
The attackers started a gun battle with guards late on Sunday at the medium-security prison at Kabba in Kogi state, southwest of the federal capital Abuja, a spokesman for the Correctional Service said.
“The medium-security custodial centre in Kabba, Kogi state, has been attacked by yet to be identified gunmen and 240 inmates forcefully released,” spokesman Francis Enobore said.
He did not give details on any casualties. It was unclear who the gunmen were but central and northwest Nigeria have been terrorised by criminal gangs for years.
Haliru Nababa, Nigeria’s controller general of corrections, took charge of an investigation into the attack and ordered all the inmates to be recaptured.
“He appealed to the general public to provide useful intelligence that will assist in recapturing the escapees to security operatives,” said Enobore.
A total of 294 inmates were in custody at the time – 224 pre-trial detainees and 70 convicted, the prison service said. The jail was established in 2008 with a capacity of 200 inmates.
Suspects can spend years in pre-trial detention in Nigeria. Human rights groups say prisons are often overcrowded and legal procedures inefficient.
Large prison outbreaks are not uncommon in Nigeria. In a brazen attack on April 5, gunmen raided Owerri police headquarters, freeing more than 1,800 inmates.