The Borno Police Command said it had arrested 13 suspects in connection with Saturday's attack on Mafa police station in Mafa Local Government Area (LGA) of the state.
Unknown gunmen attacked the station at about 9 p.m. killing two policemen after an exchange of fire.
Mr Samuel Tizhe, the spokesman of the command, said in a statement in Maiduguri on Sunday that some of the attackers suffered bullet wounds after the incident.
``It is true that unknown gunmen attacked the Mafa police station around 9 p.m. killing two policemen.
``They did not succeed in taking away either arms or ammunitions because their effort was repelled by policemen on duty,'' Tizhe said.
He added that the suspected attackers were traced to a near-by village through blood stains on their path as they escaped from the station.
``Some of them suffered gun wounds and the police traced them through the blood stains to a near-by village.
``Thirteen suspects have so far been arrested and investigations are still going on into the matter,'' Tizhe said. (NAN)