Immigration Minister Scott Morrison has confirmed that one person is dead and another in a critical condition following a riot at the Manus Island detention centre overnight.
One person was killed and 77 injured during a second night of rioting at an Australian immigration detention centre on Papua New Guinea's Manus Island, Immigration Minister Scott Morrison said on Tuesday.
Thirty-five asylum-seekers broke out of the same facility on Sunday evening, with several injured, as tensions mount about their fate under the Australian government's hardline policies.
"The news of a death is a great tragedy," Immigration Minister Scott Morrison said.
"This is a tragedy but this was a very dangerous situation where people decided to protest in a very violent way and to take themselves outside the centre and place themselves at great risk."
"If you behave in an unruly way and in a disorderly way then you subject yourself to the response of law enforcement."
Of the 77 injured, one is critical with a skull fracture, while another was shot in the buttock. They are being evacuated to Australian hospitals.
Morrison said that despite the unrest, the immigration centre had not been destroyed.
PNG authorities will investigate the death and a shooting that injured one of the other asylum seekers being evacuated to Australia, he said.
Immigration Minister Scott Morrison would not be drawn on what sparked Monday night's riot and said Australian authorities were unaware of the exact circumstances of the death since it happened outside the facility where security was the domain of PNG police.
It was the second night of unrest at the Manus Island centre and 77 people were injured during the three-hour riot, 40 of whom have since been discharged from hospital.
Mr Morrison offered sympathy to the family and friends of the person who died.
In an earlier statement Tuesday before he led a press conference, Morrison said some of those in the camp "breached internal and external perimeter fences".
"I am advised that all staff have been accounted for, our service providers are in control of the centre and there has been no damage to critical infrastructure or accommodation at the centre, which will enable the centre to resume normal operations."
Manus Island is one of two remote Pacific camps being used in Canberra's punitive off-shore detention policy.
Under the scheme, aimed at deterring people-smugglers, any asylum-seeker arriving by boat or intercepted at sea is transferred to Manus or Nauru for processing and permanent resettlement outside Australia.