Papua New Guinea police have blamed alcohol for a shooting attack by mobile squad personnel at the police dog unit's barracks.
Local media has reported that despite the shooting by the heavily-armed mobile squad police, no injuries have been confirmed.
The squad members were reportedly looking to avenge what they claimed was an earlier attack on a colleague by some police dog handlers.
They unloaded a fusillade of gunfire into the dog unit's barracks at the police training college at Bomana on the outskirts of Port Moresby.
The acting Police Commissioner Jim Andrews said alcohol was a factor behind the shootings, and that officers who fired the shots would be disciplined.
He added that a reconciliation-type process between the two groups of police personnel would take place.
The incident is just the latest in a long string of disciplinary problems within the force.
The Police Commission and the government last year launched a new campaign to instill discipline within the force.
However, it is yet to take hold with the rank and file, adding to the government's concern over security as PNG prepares to host the APEC leaders summit in November.