This brough the number of people killed on Saturday in payback killing to five - all from the Sikir tribe.
The young girl’s body was discovered yesterday, acting provincial police Commander Chief Inspector Epenes Nili said.
He said the girl was sleeping in her house when hired gunmen and suspects allegedly led by a councillor from the Sikir tribe, his policeman son, his public servant brother and a reserve policeman brother killed her and burnt her.
He said the suspects on the same night killed a pastor, his brother a policeman, a primary school teacher and late pastor’s six-year-old son.
Nili said that late pastor’s two-year old son had a leg chopped and was at the Wabag Hospital’s intensive care unit along with his mother, who was seriously wounded together with two other women.
“The killings were payback for the killing of a policeman from the same tribe two years ago,” he said.
He said the prime suspects had gone into hiding and police was monitoring the situation.