The relatives of a New Zealand man who's been missing in Western Australia for almost a week say the 23-year-old may be on a "spiritual journey".
West Australian police on Saturday renewed their search for Michael Junior Huria, who also goes by the surname Sullivan.
He hasn't been in touch with family or friends since leaving his home in Ellenbrook after 4am on Monday (local time).
Mr Huria's father, Mark, and brother, Tamati, made a public appeal on Saturday.
Speaking at the Ellenbrook Police Station they said Michael's disappearance was "unusual".
"He's a bit lost at the moment," Tamati Huria said of his brother who recently quit his job as a builder.
"We don't know but we think he might have gone out on a spiritual journey of some kind - he's quite inclined in that way."
Police and SES volunteers have been searching in nearby Upper Swan where a woman thought she might have struck a pedestrian on Monday night.
Despite searching the area at the time no-one was found near the road.
Mr Huria's white ute was subsequently located in Ellenbrook but the 23-year-old remains missing.
"The search for Michael will continue throughout the day and will perhaps conclude early this evening," a WA Police spokeswoman said on Saturday afternoon.
"Assessments will then take place regarding any future searches."
Upper Swan is five kilometres east of Ellenbrook in Perth's outer northeastern suburbs.