Police say a suspect has been identified over the disappearance of a four-year-old boy who went missing in the South Australian outback.
Gus Lamont was last seen playing outside his home on a remote sheep station near Yunta, about 300km (186 miles) from Adelaide, on 27 September.
His grandmother left him alone for about half an hour before checking on him, only to find the boy missing, prompting one of the largest land and air searches in the state's history.
Police said a person who lives on the property has been identified as a suspect but confirmed the boy's parents were not under investigation.
In the days and weeks after the boy was reported missing, police conducted extensive searches, covering about 470 sq km - an area roughly twice the size of Edinburgh - around his home.
In late October, police wound down efforts and appointed a 12-member taskforce to continue the investigation.
The taskforce sifted through statements given by family members, which identified a number of inconsistencies and discrepancies regarding the timeline of the boy's disappearance.
That led to the identification of the suspect, who has since withdrawn support for the police investigation.
Authorities stress that they remain committed to locating Gus and will keep investigating until they have answers.
