Cleo Smith’s biological father was today interviewed by police, 7NEWS has reported.
Daniel Staines spent almost three hours at the Mandurah police station, accompanied by his parents.
It’s understood the Mandurah man was asked to provide a statement to police and did so willingly.
The West Australian is not suggesting he was involved in Cleo’s disappearance.
The four-year-old was last seen around 1.30am on Saturday but had vanished from the family tent at the Blowholes Campground in Macleod, near Carnarvon, when her parents awoke at 6.30am.
Speaking from the campsite this afternoon, WA Police Inspector Jon Munday said the search grew more urgent with “every hour” that Cleo was missing.
“With a four-year-old out in this environment… there is limited water supply, it is warm, there is very limited shelter so it is very, very concerning,” he said.
But he advised other campers and tourists in the area need not be worried about their own safety.
“I think people just need to be aware of their surroundings, just be aware of who’s around, what their kids are doing, what their family is doing and just look out for each other,” he said.
“We have no indication that anyone else in this area is under some sort of threat.”
Insp. Munday said he could not comment on whether the tent was zipped up when it was discovered Cleo was missing, if the girl’s biological father had been contacted by investigators, or if any tracks had been found around the campsite.
Homicide detectives and forensics experts arrived from Perth yesterday to help with the search, which extended to the shacks at the Blowholes campsite.
The family tent has now been removed but the area is still taped off.
Insp. Munday said the marine arm of the investigation had been “scaled back” as no sign of Cleo has been found in the water.
“I can’t comment on specifics of what we have uncovered and what we haven’t uncovered but we have got the best people we can on this and we are going to leave no stone unturned until we have some answers,” he said.
Cleo is approximately 110 centimetres tall with honey blonde coloured hair and hazel eyes.
Anyone with information is urged to call police on 131 444.