Police are hunting a dangerous and unpredictable Mandurah man.

Andrew Jade Bennell, 26, is wanted by police regarding an investigation into threats and firearm possession offences that occurred in Mandurah on Saturday.

Andrew Bennell.

“He is considered dangerous as he is in possession of a firearm and may behave in an unpredictable manner,” police spokeswoman Susan Usher said.

“If sighted, members of the public are advised not to approach him and to call police immediately on 131 444.”