Police in Papua New Guinea's Hela province have set up camp in the remote settlement of Tari to try and stop tribal warfare between the Erepe and Tapaya clans.
The provincial commander, Superintendent Mark Yangen, says fresh fighting erupted last week after three men from Tapaya were attacked by the Erepes.
Two died and another was critically injured.
Mr Yangen says the Erepes retaliated on Saturday, killing one person from Tapaya and injuring another.
The Post Courier reports the police presence has so far stopped gun battles beteen the clans, who have been fighting since late last year.