In a statement, the Royal PNG Constabulary said soldiers fired several shots into the air and indiscriminately assaulted policemen, PNG Immigration officers, other service providers and asylum seekers.
The incident occurred on Friday, April 14, at about 6.30pm at the Manus Regional Processing Centre.
Manus provincial police commander, Senior Inspector David Lapu, said a group of drunken soldiers, in retaliation for one of their colleagues, who was allegedly assaulted by an asylum seeker, entered the centre, shouting and throwing objects at the asylum seekers.