Police are searching for two prisoners who are on the run after escaping custody in Geraldton.
Cameron John Graham, 22, and Kelden Edward Fraser, 23, escaped from a security van at Geraldton Airport at 1pm.
Police said the men were believed to be travelling in a silver/grey Toyota Kluger (registration IDGZ 627), stolen from the airport.
Graham is described as 170cm tall, with a dark complexion, medium build, brown eyes and short brown hair.
Fraser is 180cm tall, with a dark complexion, medium build, brown eyes and black hair.
The men were last seen wearing a green prison uniform.
The pair were being transferred to Perth from Greenough Regional Prison.
Police said the men were considered violent and should not be approached.
Any sightings should be reported to police on 131 444.