Unknown gunmen have attacked and killed 22 commuters on a road near Jos, the capital of Plateau state.
Unknown armed men have increasingly targeted Nigeria’s roads and has wrecked havoc in many regions.
A morgue attendant who asked to remain anonymous said security forces had brought 22 bodies to the hospital on Saturday.
Military spokesman in Plateau said in a statement that troops had responded to a distress call on Rukuba road in the Jos North local government area and had arrested 12 suspects after an unspecified number of people were killed and injured.
Meanwhile, three children in northeastern Borno State were killed by unexploded ordnance left on a bridge, according to Unicef. Two children sustained mild injuries and three others were in critical condition.
According to Unicef, unexploded ordnance are small enough to pick up or kick around, putting children, who can mistake them for toys or objects of value, at particular risk.
In Plateau State, Governor Simon Bako Lalong, said in a statement he would not allow any form of lawlessness to disrupt the state, and commended security agencies for their quick response.
His statement did not specify the number of people killed.
Police spokesperson promised to issue a statement later but refused to make any comment immediately.
Conflicts between farmers and cattle herders in the middle belt have killed thousands of people and displaced half a million over the past decade.