A young Aboriginal man has died in Western Australia's Hakea prison.

The man, aged 30, was found unresponsive just before 4pm on Friday.

The WA Department of Justice said prison staff including medical officers provided first aid to the man until St John WA paramedics arrived.

The Department said on Saturday that "preliminary reports indicate that there were no suspicious circumstances" involved in the man's death.

WA Police will prepare a report for the State Coroner, as is mandatory in the event of any death in custody.

According to data from the National Deaths in Custody Program, this is the 25th Indigenous death in custody this year nationwide out of a total of 77 deaths in custody.

Megan Krakouer, Director of the National Suicide Prevention and Trauma Recovery Project, noted that at least 610 Indigenous people have died in custody since the Royal Commission into Aboriginal Deaths in Custody brought down its findings in 1991.

"How many more cries for help must go unanswered before our people stop leaving these places in a box?" she said.

"Indigenous Australians Minister Malarndirri McCarthy — we call on you: come to Western Australia. Sit with our communities. Listen to the grief, the anger, the truth. Words from Canberra are not enough. Our families are burying loved ones while leaders remain silent.

"Premier Roger Cook has failed to invest in real prison reform. A key Royal Commission recommendation — the Aboriginal Visitors Scheme — remains under-resourced. It must be funded to run 24/7, with teams ready to respond to crises."

Ms Krakouer told National Indigenous Times: "We cannot accept the same tired excuse of 'not enough staff'."

"We've heard that for decades. What we need now is action, accountability, and meaningful engagement with our communities, the affected, and the unheard. No more delays. No more deaths," she said.

In 1991 the Royal Commission into Aboriginal Deaths in Custody issued more than 300 recommendations, many of which have not been implemented.