The search for the missing four-year-old Gus Lamont is being intensified by police due to increasing worries about a possible link to another man who also disappeared in the area at the same time.

Gus disappeared from his grandparents’ remote South Australian property near Yunta on September 27 while playing on a mound of dirt. 

Despite an exhaustive six day search, authorities called off the operation last Friday only to resume it four days later.

Fresh concern has now been raised about a 40-year-old man named Benjamin who went missing on September 26, just one day before Gus.

Benjamin was last seen driving erratically on the Stuart Highway south of Glendambo, a roughly two hour drive from Gus’s home.

Few details are known about Benjamin, who was travelling in a blue 2006 Hyundai Getz with Western Australia registration plates 1IGG659. 

Neither his surname, family situation nor the circumstances that led to him being in the area have been revealed. 

Gus’s abandoned car was discovered in thick brush approximately 10 kilometers from the highway in Wirraminna on September 27, the day Gus was reported missing.

Police conducted a wide-scale search with SES volunteers, drones and local trackers, yet he remains missing.

Police have called on anyone who was travelling the Stuart Highway between Port Augusta and Glendambo on the afternoon of September 26, especially if they have dashcam footage, to come forward.

Several truck drivers reported being concerned by the vehicle’s erratic driving that day.

The unusual coincidences have alarmed local residents, prompting them to question if there might be a connection between the disappearance of Benjamin and young Gus.

On Saturday, just a day after police announced they were reducing efforts to find Gus, they made a renewed plea for help in finding Benjamin, which upset many people.

‘Where is Gus?’ one person commented under a post about Benjamin’s appeal.

‘You’re cutting back on a child’s search but asking for more details on this man. I mean no disrespect to his family, but don’t stop searching for a little boy,’ wrote one person.

Since then the search for Gus has been widened, with South Australia Police Commissioner Grant Stevens confirming the a specialist group, Taskforce Horizon, will focus solely on Gus’s disappearance.

But the search took a grim turn on Wednesday with a change in weather conditions.

A police spokesperson told Daily Mail that officers – along with an 80-strong army contingent – would be forced to begin searching at dawn on Thursday, and stop by noon due to howling 50km/h winds and temperatures soaring past 34C.

Police have not confirmed whether they plan to expect to extend the search beyond Friday.

Meanwhile the dirt track into the property is becoming almost impassable to anything smaller than a four-wheel drive.

A van carrying army personnel became bogged down in the thick bulldust that shrouds deep rivets in the road leading to Gus’ grandparents’ home.

It is also understood that searchers encountered several brown snakes while scouring the saltbush-studded plains surrounding Oak Park Station.

Members of the media were warned to keep vigilant for snakes, and present to the ambulance stationed in front of the Murray homestead immediately if bitten.

Daily Mail understands no one has been injured and the search party remains healthy as of Wednesday afternoon, when the hunt was abandoned amid sweltering conditions around 3pm.

Former NSW homicide detective Gary Jubelin, who led the investigation into the disappearance of William Tyrrell, told Daily Mail Australia that officers would be looking further afield for the sake of thoroughness. 

‘Police would be considering whether young Gus disappeared through misadventure, wandered off, or whether there was some form of intervention – either human or, given the nature of the land out there, possibly wildlife,’ Mr Jubelin said. 

‘Things can be missed, minute things can be missed.’

Rumours have circulated online, including a viral but fake image showing Gus being bundled into a car by an unfamiliar man, adding to the sense of urgency and fear in the community. 

Commissioner Stevens emphasised there is ‘nothing to suggest foul play’ but said officers are exploring every possibility. 

‘Nothing is off the table. We are endeavouring to recover Gus for his family,’ he said. ‘The family are cooperating fully with the police inquiry.’

Tracker and former policeman Aaron Stuart, who has assisted in the investigation, said:

‘I honestly believe the answer is back there on the property. Go back, rethink it, reinterview everybody, but take them back not 30 minutes, take them back a week. 

‘If they can keep the trackers on foot not on quad bikes or motorbikes, because a good tracker needs to stay close to the ground.’