Police and firefighters were called to a blaze at Karnet Prison Farm in Keysbrook overnight.
The fire started in a mechanical workshop at the low-security facility around 10pm.
It took fire crews over an hour to extinguish the blaze.
All inmates and prison staff have been accounted for and police say there are no suspicious circumstances.
Shark alert issued after whale carcass reported at Preston Beach
A shark advice has been issued for Preston Beach, south of Mandurah.
Kwinana businesses to refuse serving students during school hours
Local businesses in the City of Kwinana are teaming up to keep kids in school.
Men attacked, campervan windows smashed in East Rockingham
Police are hunting a group of people who bashed and robbed two men in East Rockingham.
Entries for 2026 Castaways Sculpture Awards now open
Entries for the City of Rockingham's 2026 Castaways Sculpture Awards are now open.
Meadow Springs man pleads guilty to threatening to kill PM and NSW Premier
A 19-year-old Meadow Springs man has admitted to making death threats towards the Prime Minister and the New South Wales Premier.
Person critically injured in North Dandalup crash
One person has suffered life-threatening injuries following a crash in North Dandalup.
Iconic sports broadcaster Dennis Cometti dies aged 76
Iconic sports commentator Dennis Cometti has died aged 76.
Teen killed while crossing Warnbro Sound Avenue remembered as cheeky, adventurous boy
The family of a 13-year-old boy who tragically died after being hit by two cars in Warnbro have paid tribute to the teen.
Firefighters spend night battling bushfire near Lark Hill Sportsplex
Firefighters have worked through the night to extinguish a bushfire in Port Kennedy.