The Papua New Guinea Defence Force says it will deal severely with the soldiers involved in the assault of a senior police officers on New Year's Day morning.
The Force's chief of staff Col Raymond Numa told the Post Courier that the confrontation between the police and the military in the Port Moresby area is being investigated.
The Post Courier said several rounds were fired near the Boroko police station.
The incident was triggered by the arrest of a PNGDF captain who was stopped at a road block near Taurama while he was providing a private escort.
He was disarmed and taken to the police station, but Superintendent Ben Turi said two car loads of armed soldiers then arrived in the hope of securing the captain's release.
Superintendent Turi said he persuaded them to leave but shortly afterwards two soldiers assaulted him nearby.
He said the police wanted to retaliate but he stopped them from doing so.