According to the state commandant of the agency, Bamidele Akingbade who made the statement in Umuahia, the attack took place at about 3 p.m. on Tuesday.
Mr Akingbade who blamed the attack on hoodlums, added that only a section of the office complex was set ablaze.
Akingbade said the culprits wanted to free the suspects who were detained in the facility.
“However, the suspects were relocated out of the facility, in the wake of Monday’s attack on the nearby office of the Independent National Electoral Commission,”
He said the agency recorded no casualties and that their weapons were intact, adding that important official documents were stored in a fire-proof safe.
The Abia State Government, in its reaction to the incident, vowed that it would spare no efforts to get the masterminds of the attack.
According to the Commissioner for Information, Okiyi Kalu, the government will get the perpetrators and bring them to justice.
Facilities belonging to state institutions, including police formations and an INEC office, have come under attack by gunmen in the last few days.
The security situations in these states have gone haywire as deadly attacks on security agencies continues to thrive.