Unknown gunmen have raided a remote village in the north-eastern Nigerian state of Taraba, killing at least 10 people, looting shops and setting houses ablaze, police say.
Police are searching for other casualties, with officials warning the actual death toll could rise further.
The country is also battling a jihadist insurgency in its north-east that has lasted nearly two decades, drawing persistent criticism of the government's handling of insecurity.
He added that officers were continuing to search the bush nearby for people who might were killed or wounded, and warned the death toll could still rise.
Nigeria continues to face attacks by armed groups across several regions, including the northwest, northeast and central regions.
There are fears the actual death toll is much higher, with eyewitnesses speaking of 20 lives lost and a non-governmental organisation suggesting a toll of as many as 50.
"They also took motorcycles abandoned by people fleeing the attack."The kidnap gangs, jihadists and separatists wreaking havoc in Nigeria 'If you started running, they shot you' - inside Nigeria's growing kidnapping crisis Survivors who spoke to said they had counted at least 20 dead. Following the latest incident, police said they recovered 10 bodies with gunshot wounds after officers responded to a distress call.