Out of about 1,800 inmates that escaped in Imo attack on Monday, six have returned.
Spokesman of the Nigerian Correctional Service(NCoS) Francis Enobore, confirmed this in a statement on Monday.
According to Enobore, the six inmates returned voluntarily.
Hours after the attack, Enobore confirmed that the gunmen forcefully released a total of 1,844 inmates from custody.
He explained that the attackers, who stormed the facility at about 2:15am, gained entrance into the yard by using explosives to blast the administrative block.
They were reported to have invaded the correctional centre in their large number in several Hilux pick-up vans and Sienna Buses, armed with sophisticated weapons, and immediately engaged the security personnel on duty in a fierce gun battle after which they eventually detonated the explosives to gain entrance.
TOS News had reported that Gunmen attacked correctional facility in Owerri, Imo State capital and the Police Command Headquarters on Monday.