The incident occurred along the Imbonggu road in Southern Highlands.
The Hela leaders gathered today in Port Moresby and shared their grievances, saying the military style ambush and killing of police officers, and wounding of another officer along with two teachers, was a terrifying action.
The leaders said such an action requires a full scale operation to bring the killers to face the full force of the law.
Hela Gimbu Association chairman Damien Arabagali condemned such an act, describing it as barbaric and preplanned murder.