South Australian Police have spent the morning scouring the outback for signs of missing four-year-old Gus Lamont, but have had their efforts cut short due to extreme heat.

More than 100 personnel, including the Australian Defence Force and SES were out in the landscape surrounding Yunta from first light this morning, searching for fresh clues to try and find out what happened to the boy who has been missing since September 27.

Today marked day three of an extended search under the name Task Force Horizon to try and find Lamont, with the focus on a 5.5km radius around the remote homestead from where he went missing.

Gus was last seen about 5pm on Saturday, September 27 at his family's homestead Oak Park Station in remote South Australia, about 40km south of Yunta.

Taskforce Horizon co

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