Police hold concerns for the welfare of a 51-year-old man, after he went missing in the Stirling Ranges.
Matthew Dwyer - a professional photographer who frequents the area - has not been able to be located since Wednesday morning.
At around 7.30, his keys and backpack were found on Bluff Knoll by a member of the public, while his camper-van was found in the car park.
He is described as approximately 180cm tall, with a slim build and grey balding hair.
It is believed he may be wearing long pants and a blue top, possibly with a jumper.
An Australian Maritime Safety Authority Search and Rescue Jet conducted a search of the area overnight, and will today continue with a police helicopter and emergency services.
Anyone who sights Mr Dwyer or has any information regarding his whereabouts is asked to call police immediately on 131 444.
Mandurah teacher who raped student to remain on bail
Man charged after allegedly exposing himself to girl on Transperth bus in Lakelands
Fire rips through Golden Bay home
Firefighters battle bushfire near Nambeelup
Alcoa Children's Festival cancelled due to severe weather
Man charged over crime rampage from Furnissdale to Kwinana
Damaging winds forecast for Harvey, Dwellingup, Pinjarra
Southern suburbs man claims $15 million Lotto win after eventually answering life-changing call from Lotterywest
Two women taken to hospital after Kwinana Freeway crash