The search for missing four-year-old Gus Lamont is expected to conclude today without any significant developments, as law enforcement and military personnel continue to find no signs of the young boy from South Australia.

Today marks the fourth day of the extensive operation, dubbed Task Force Horizon, which has concentrated efforts within a 5.5-kilometer radius surrounding the isolated homestead where Gus disappeared.

Yesterday, the search was prematurely halted due to soaring temperatures, following three rigorous days of combing the remote outback terrain.

Despite the intensive efforts, authorities have yet to uncover any new leads in this second week of the search.

Should today end without progress, the major crime squad will reassess their strategy, exploring potential technological resources to ensure all avenues are exhausted in the quest to locate the boy.

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 consists of 12 specialists who will analyse information and suggest different areas to search.

Police have said they believe they will finish the search of that radius by today.

Officers remain in close contact with Gus’ family, who they say continue to engage with the investigation.

They’re also interviewing local residents.