Hundreds of people have fled their homes in central Nigeria after three days of communal clashes.
The fighting in Plateau State has left at least 25 people dead, according to unconfirmed reports.
State Information Commissioner Yakubu Datti would only confirm the deaths of two policemen and a soldier during efforts to restore order.
The violence was apparently triggered by a dispute over rights to take sand from a river for building.
Ethnic militias armed with guns, machetes and bows and arrows, attacked each other and burnt many homes.
Rising tension
A dusk-to-dawn curfew has been imposed on the area.
Hundreds fled their homes in and around the town of Namu, carrying what they could and seeking shelter with the security forces, the BBC’s Alex Last reports.
Residents say tension has been rising recently between the pan-ethnic group and other tribes over the location of a new government building which would create jobs and bring money to the area.
The trigger, though, was a dispute over who had the right to take sand from a riverbed in Namu – a right which is claimed by different ethnic groups.
Plateau State, where these clashes occurred, has been riven by ethnic violence in the past. Two years ago, hundreds were killed in clashes which began in a land dispute but quickly escalated.
Nigeria has more than 300 ethnic groups and there are often disputes, sometimes violent, over access to land and resources.