NSW Police Police Commissioner Mal Lanyon has arrived in the state’s central west to support authorities as the search for alleged triple-killer Julian Ingram continues in “extraordinary conditions” following one confirmed sighting.

“What we are seeing at the moment is a search that is in the most extraordinary conditions,” NSW Police Commissioner Mal Lanyon said.

“This is the fifth day of over 40-degree temperatures, yet our police have been unwavering.”

NSW Police Commissioner Mal Lanyon gives an update as the hunt in Lake Cargelligo.NSW Police Commissioner Mal Lanyon gives an update as the hunt in Lake Cargelligo. (Nine)

Assistant Commissioner Andrew Holland has said that members of the public have been “very forthcoming with their information” following one confirmed sighting of the alleged offender at Mount Hope earlier this week.

“We believe that he is still alive,” Holland said.

“Our plan is to track him down and bring him forth before the courts.”

“The experience he has as a local in the area, he’s worked for the council, he’s worked in those areas out towards Mount Hope.

“He’s aware where the water sources are, he’s aware where the hidey holes are, such as caves.”

Holland said that officers from the public order and riot squad are set to join the search this weekend.

Julian Ingram Manhunt for accused triple murderer Julian Ingram enters fourth day, keeping NSW town on edge (9News)

He also said that police have not ruled out the potential of Ingram being assisted by a member of the community.

“We will be confident to say that he is possibly receiving help from people he knows in the community.

“Given the temperatures involved, he has to have access to food and water.

“He’s out and about and moving around.

“I would suggest that he is using a vehicle.

The NSW Police Commissioner has asked anybody who could be assisting Ingram to “think about the broader community”.

“What he has committed here is an atrocity.

“What was certainly alleged is something that is completely unacceptable,” Lanyon said.

Lanyon reassured the community that the police force is behind them as the search for Ingram nears one week since three people were fatally shot.

“My commitment to you as the commissioner of the NSW Police is to keep you safe.”

Lanyon has said that a significant policing presence will continue to oversee the rural town as authorities continue to scour the area.