A neighbour revealed they saw the 36-year-old man buying nappies. Photo / Twitter
Four-year-old Cleo Smith has been found "alive and well" in Western Australia, with the search for the missing girl finally coming to an end after 18 days.
Detectives found Cleo in the early hours of this morning after breaking their way into a house in Carnarvon, about 70km from the campsite where the child disappeared.
A 36-year-old man from Carnarvon is now in custody and is being questioned by police, with neighbours revealing new information about the man's movements in the lead up to Cleo being found.
"It's my privilege to announce that in the early hours of this morning, the Western Australia Police Force rescued Cleo Smith," Deputy Commissioner Col Blanch said in a statement on Wednesday morning.
Investigators believed the girl was abducted in the early hours of the morning, after ruling out that she would have been able to wander out of the tent on her own.
Ellie Smith said her daughter woke up at 1.30am asking for water before going back to bed.
She then woke up at about 6am to find the tent unzipped and Cleo missing. The Police were called just before 6.30am.
For weeks officers have been questioning people who were at the campsite, mapping CCTV cameras, using drones to help with the search and even shifting through tonnes of rubbish for any clues to her whereabouts.
Cleo was alone when she was found
Details of the lead-up to finding Cleo have begun to come to light, with Blanch saying the intelligence that sent police to the home in Carnarvon had only recently been flagged.
"Literally this was a needle in a data haystack and our very, very good officers and investigators and analysis in that task force found that needle late last night and as a result executed that search warrant … just incredible," he told 6PR radio.
He also revealed the 36-year-old man who is in custody wasn't in the home when Cleo was discovered.
"When the detectives went in and rescued Cleo, she was alone at the time," he said.
The house where Cleo was found is reportedly just minutes from her family home.
Blanch also told Sunrise that police acted on the intelligence within "a matter of hours", which saw them enter the home at 12.46am.
"They went into that house, Cleo was in the house alone. A man is assisting us with inquiries at the moment so I'm not going to speak too much more about that given that is part of the current investigation."
He said that it was still "very early" in the investigation.
A group of young men who witnessed the rescue operation told Nine News they saw one of the detectives carrying a young girl as they left the home.
"One of the boys shouted and said, oh they've got a little girl there, it might be Cleo … I ran there, stood up toward the detective's window and I saw Cleo in the back. Yeah, that's her there," they said.
One of the major focuses of the investigation has revolved around a report from two people who said they saw a car turn right off Blowholes Rd on to North West Coastal Highway, heading towards Carnarvon, between 3am and 3.30am on the day Cleo vanished.
The car was described as a "passenger vehicle".
Police haven't revealed whether the man in custody is the driver of the vehicle that officers have been searching for.
Yesterday it was revealed police had discovered multiple escape routes that avoid CCTV cameras between the campsite and the town of Carnarvon, which is about 70km away.
This means Cleo's abductor could have left the campground without being spotted by any cameras.
Prime Minister Scott Morrison praised the officers involved in finding Cleo, following the "wonderful, relieving" news of her discovery.
"Cleo Smith has been found and is home safe and sound. Our prayers answered," Morrison said in a tweet.
"Thank you to the many police officers involved in finding Cleo and supporting her family."
What wonderful, relieving news.
Cleo Smith has been found and is home safe and sound.
Our prayers answered.
Thank you to the many police officers involved in finding Cleo and supporting her family.
Criminologist Dr Xanthe Mallett told Sunrise on Wednesday morning that she had been "expecting the worst" due to the length of time Cleo had been missing.
The 4-year-old disappeared 18 days ago, with Mallett telling the program it is highly unusual to find an abducted child alive and well after so long.
"This is a miracle. Fantastic news for me to wake up to. I was extremely pleased to hear that."
Mallett said the past few days indicated police were moving towards a "conclusion strategy".
She said police would have looked into every single lead that was brought to them.
"It may be that car that was the key to solving this, it may have been something else. Obviously they have looked closely in the local community."
Abduction likely an 'opportunistic' event, police say
Lead investigator into Cleo's disappearance, Detective Superintendent Rod Wilde revealed on Tuesday that police believed the 4-year-old was likely targeted in an "opportunistic type event".
"We know [the family] got there … on the Friday night. It was getting dark and so there would have been limited opportunity for people to observe Cleo at that time," he told 6PR radio.
Wilde said police were examining how someone could take Cleo from the tent without attracting attention.
"That's what we're trying to resolve, that's what we're trying to understand," he said on Tuesday.
"We're doing a lot of work forensically … we've had over 1000 calls to Crime Stoppers."
Before Cleo's discovery, Blanch told ABC radio that the working theory was that she was likely still in WA.
He said the focus at the moment was eliminating "as many people as possible" as suspects, along with forensically going over the ground "inch by inch" for any evidence or clues.
"It could be tyre tracks, it could be the sleeping bag — it could be anything."