The attackers stormed the police post in Adamawa state’s town of Gulak, which is roughly 200 kilometres (125 miles) from the capital Yola, state police spokesman Nemuel Yoila told AFP.
“The police station was attacked by a group of gunmen who threw explosives into the police station and opened fire,” Yoila said, adding that the building was destroyed by the subsequent blaze.
“Details are still sketchy, so it is still not clear if there were casualties,” he added.
The spokesman did not say who was responsible for the raid, but the attack was similar to those carried out by Boko Haram, which has repeatedly hit northeastern Nigeria and has frequently targeted the police.
In March, also in Adamawa state, the extremist Islamist group launched a bomb and gun attack on a police installation in the town of Shuwa, killing three officers.
Days later, another police officer was killed when suspected Islamists bombed a police post in the town of Demsa.
On Tuesday, three policemen were shot dead in neighbouring Taraba state when gunmen attacked a regional police headquarters in the town of Wukari.
Boko Haram is responsible for more than 1,000 deaths across northern and central Nigeria since the middle of 2009.
The group has previously said it wants to create an Islamic state in Nigeria’s mainly Muslim north, but its stated demands and grievances have varied widely as its insurgency has intensified in recent months.
Also, reports from Madagali, a border local government between Adamawa and Borno States indicated that gunmen numbering about twelve had earlier attacked the Divisional Police Station in the town and some houses of notable personalities in the area.
According to the report, the attackers later ransacked two old generation banks in the area, where huge cash and other valuables were carted away.
The casualty figure occasioned by the attack according to report was high as the entire town was thrown into sporadic shootings and heavy explosions that lasted close to an hour.
The entire town was completely enveloped by stampede, even as casualty figure occasioned by the stampede was as high as those hit by stray bullets.
No fewer than four police officers in the station including three inspectors and a corporal were confirmed killed as the attackers completely subdued the station and emptied the armoury.