He said the attackers had stormed the police formation at about 6pm on Saturday, shooting sporadically.
According to the police image maker, reinforcement from the command headquarters added to the fierce engagement with men on ground saw eight of the hoodlums neutralised.
He added that some of the attackers escaped with gunshot wounds while two vehicles were recovered.
The facility he said was raised down following the detonation of an explosive through the back of the building, it was raised down.
While stating that the suspects in detention were released and an exhibit car burnt, SP Geoffrey Ogbonna said no firearm was carted away.
He, therefore, urged medical facilities within and outside the state to report to security agencies in the event that patients with a suspected bullet wound come for treatment.
SP Ogbonna further appealed to parents and guardians to warn their children and wards to desist from acts capable of truncating the peace and security of the state, describing it as a whirlwind that will blow no one good.