Gunmen attacked the Adamawa State Police Headquarters in the early hours of Wednesday, sending residents of Yola into panic.
The Police headquarters is located at the heart of Jimeta community in Yola North local government area.
Police Public Relations Officer in the state, SP Suleiman Yahaya Nguroje, confirmed the attack but said things were under control.
Nguroje said the attack was repelled, but the identities of those behind it was unknown.
Sounds of gunshot rend the air for at least 30 minutes, according to a resident.
One source said the attackers were military personnel on a revenge mission, following the alleged killing of a military officer by the police.
The development comes some days after the stand-off between officials of the Economic and Financial Crimes Commission (EFCC) and personnel of the Nigerian Air Force.
The Command said investigations were ongoing to ascertain the cause of the attack and those behind it.