A police manhunt is underway in Perth's southern suburbs for a man police have described as armed and "very dangerous".
Malcolm Stirling Blurton, 30, is believed to be carrying a number of firearms and "other weapons", and police say his behaviour is unpredictable.
He was last seen in the Armadale and Gosnells area, and police say he may be driving a silver vehicle, which could be a hatchback or SUV.
He is described as dark-skinned, approximately 175cms tall, with a medium build and short brown hair, possibly with a rat's tail.
Acting commissioner Paul Steel said police wanted to speak with Mr Blurton about a number of crimes in the Armadale area.
"Police have been conducting inquiries in relation to illicit drug use and other crimes, including several recent incidents where people were sighted with weapons," he said.
He said a number of other people had been assisting police with their inquiries.
"It's important to note that we believe those incidents are restricted to a small group of people, rather than being a risk to members of the public, however, Mr Blurton is considered dangerous, " Commissioner Steel said.
People are warned not to approach him but to call police immediately on 131 444.
