The Manus Island refugees are bracing for clashes with the PNG army as soldiers prepare to move in to clear out the remaining 600 men who refuse to leave.
Authorities are facing a stand-off with the detainees unwilling to go and locals are reportedly blocking the construction of new refugee accommodation, with doubts about whether there are enough beds.
The refugees and asylum seekers who remain inside the compound in PNG have little water left and their electricity generators have either been switched off or let run out of fuel.
Electricity generators (pictured) being removed from compounds at the Manus Island detention centre
Hundreds of former detainees have barricaded themselves inside as the centre is officially closed
The last food packs were distributed to them on Sunday night.
Rohingya refugee Imran Mohammad told RN Breakfast he did not think PNG authorities could protect them, ABC reported.
'We are not here for food, we are not here for electricity, we're not here for water, we're here because we're persecuted in our country we left violence. We want a safe country and we want our freedom,' he said.
Tamil refugee Srirangan told AAP on Tuesday refugees were concerned about dehydration but feared for their lives as well, as the troops roll in on Wednesday.
Authorities in PNG have said they will move refugees and asylum seekers into purpose-built accommodation in the nearby town of Lorengau.
Hussein, originally from Iraqi Kurdistan, said the facility wasn't ready and that locals had blocked and protested its construction.
The deadline for the closure of the Manus Island offshore immigration detention centre has passed but detainees are refusing to leave
Asylum seekers (pictured) refused to leave the Manus Island Detention Centre on Tuesday
Some locals have looted tents, tables, boxes, fire alarms, fans and air conditioners from the decomissioned centre.
PNG lawyer Ben Lomai has lodged a legal application on behalf of detainees to block the centre's closure.
The constitution in PNG held enforceable protections for human rights, which Mr Lomai said had been breached.
The Lombrum centre was forced to close after the PNG Supreme Court ruled in April 2016 that Australia's detention of refugees and asylum seekers there was illegal and unconstitutional.
Refugees and asylum seekers (pictured) at the Manus Island immigration detention centre in Papua New Guinea
Acting Prime Minister Julie Bishop said it made 'no sense' for detainees to remain in the centre, but she won't guarantee their safety if they leave the camp.
'The Papua New Guinea government is a sovereign government and is responsible for law and order and security on their islands in their nation,' Ms Bishop told ABC radio on Wednesday.
'It makes no sense for these people to remain on Manus Island because the essential services have been transferred to alternative accommodation.'
Ms Bishop said food, water, electricity and medical services would be provided.
Electricity has so far been cut to at least half the buildings at the centre at Lombrum Navy Base as detainees refusing to leave for fear of their safety nervously await their future.
A Human Rights Watch report released before the detention centre's closure details claims that refugees have been robbed and stabbed on Manus Island
A looter (pictured) at Manus Island detention centre, Papua New Guinea on Tuesday who was spotted stealing a fan ahead of the closure of the facility
Immigration Minister Peter Dutton was labelled a 'monster' over the closure of the Manus Island detention centre as hundreds of former detainees barricade themselves inside.
Greens senator Nick McKim, who is on Manus Island, said he had seen first hand the suffering of 600 people and anybody who would deliberately cause such harm 'easily qualifies' as a monster.
Mr Dutton on Tuesday attacked Senator McKim for spreading false information and inciting trouble in the tense final hours of the centre's shutdown.
'It's a badge of honour to be attacked by a racist, a fascist, a monster, and a serial abuser of human rights like Peter Dutton,' Senator McKim told AAP from Manus Island on Wednesday.
'I take it as confirmation that I'm on the right track and I should keep on exposing the truth about what's happening on Manus Island.'
Six detainees have died on Manus Island – including one who was murdered – since it was reopened in 2012.