A detainee has died after reportedly being stabbed at the Yongah Hill Immigration Detention Centre east of Perth overnight.
Police, fire and ambulance crews were called to a disturbance at the detention centre on the outskirts of Northam, about 100 kilometres east of Perth, around midnight.
Police said Homicide Squad detectives were investigating the death of a 32-year-old man and two people were currently assisting police with inquiries.
In a statement, the Refugee Action Coalition said the man was fatally stabbed during an altercation with another detainee in a compound.
An accommodation building in the compound was also set on fire.
The Refugee Action Coalition said the man who died was Turkish, had been held at Yongah Hill for around three years and had signed to return to Turkey around a year ago.
"This tragic death must result in a full inquiry into immigration detention. This man should not have been in immigration detention," the group's spokesperson Ian Rintoul said.
Video shows man receiving CPR
The ABC has spoken to a man who said he was a detainee in the 'Hawk' compound in Yongah Hill where the incident took place.
The detainee said the Turkish man, who had previously lived in Melbourne, was attacked by two other detainees.
Those two men are now understood to be in custody.
The ABC has been told by a detainee that police arrived shortly after the stabbing, and an ambulance came within 30-40 minutes.
Video provided to the ABC shows a man being stretchered out before those wheeling the stretcher pause to perform CPR on him.
It is understood about an hour after the incident, a detainee lit his accommodation unit on fire, and all of the men from the Hawk compound were removed from their rooms.
Police and detectives have been coming and going from the facility this morning and it is understood forensic investigators will arrive later today.
The Australian Border Force has also released a statement confirming the man's death.
Concerns over wait for medical help
Mr Rintoul said various guards at Yongah Hill also had to perform CPR while waiting for an ambulance to arrive after the incident.
"Sometimes there is a nurse, but after hours, there is no nurse," he told ABC Radio Perth.
"It's one of the things that created a high level of anxiety last night … no ambulance, no doctor, no nurse."
Mr Rintoul has called for an inquiry into the detention system due to increasing rates of violent incidents within facilities.
"It mirrors the type of brutality of the detention centre itself," he said.
"There is such a lack of oversight and transparency to what happens inside the detention system.
"When there actually was a full commission into what was happening in aged care, the whole horror of what was happening there was revealed. We need something similar."
