Confronting images have emerged, appearing to show the moments before accused police killer Dezi Freeman opened fire from inside a bus deep in the Victorian High Country.

The images, published by The Daily Mail and the Seven Network on Wednesday, appear to show officers clustered at the doorway of  Freeman’s home as he reportedly shouted “Nazis” and “psychopaths” from behind his closed curtains.

Freeman, 56, remains on the run 16 days after the deadly ambush at Porepunkah, in which Detective Leading Senior Constable Neal Thompson and Senior Constable Vadim de Waart-Hottart were fatally shot and a third officer was injured.

One of images, which the Mail and Seven said were taken from a longer video, appear to show Thompson in a red flannelette shirt standing near the doorway as another officer works at the frame with a crowbar.

The scene outside Freeman’s barricaded bus. Photo: Seven Network

Freeman is thought to have barricaded himself inside the bus with his wife and toddler son when police arrived at his rural property to serve a warrant for historical sexual abuse.

In the video, Freeman apparently refuses to open the bus door as officers revealed why they were there.

“Leave us alone, leave us alone,” The Daily Mail reports he shouted.

Victoria Police said on Wednesday they were aware of footage circulating online. They said it was not from officers’ body-worn camera footage or members of the force at the scene.

Police have offered a $1 million reward for information leading to the capture of Freeman, the largest financial offer in Victoria’s history for facilitating an arrest.

In an update on Wednesday, police said they had received about 200 tip-offs about Freeman’s possible whereabouts since announcing the reward on Saturday. The latest tip-offs mean they have received about 1000 pieces of information in relation to the case.

But they are still to confirm any sightings of Freeman.

“We’ll commit resources to this as long as we need to,” Superintendent Craig Darlow said.

“We’ll leave no stone unturned. He’s shot two of our members … we can’t walk away.”

The property where the ambush occurred is no longer considered a crime scene. But the public is still urged to avoid Porepunkah where possible.

“If you don’t need to come to Porepunkah, don’t come here,” Darlow said.

“If you don’t need to go in the woods, don’t go in the woods.”

He acknowledged the impact on local businesses, but said the search must continue.

With the hunt for Freeman entering its third week, local businesses are reporting falling sales and reduced hours. Alpine Shire Council Mayor Sarah Nicholas said the casual workforce of the tourism-reliant region was also hurting.

“There’s uncertainty, as this could conclude in days, weeks or months,” she said.

She said it was difficult for the community.

“There’s financial anxiety for people who haven’t been able to take bookings in their caravan parks or whose turnovers are significantly down in the cafes or at the ski hire,” Nicholas said.

But she said the community had rebounded from past disasters.

“We’ve seen this before; it’s been like six major bushfires in the last 25 years, so we are good at pulling together and recovering,” she said.

“This has been far more frightening in many more ways.”

Victorian Premier Jacinta Allan said she and Nicholas discussed financial support for the Porepunkah community when she visited the area following the shootings.

“We’re working through what that can look like,” she said in Melbourne on Wednesday.

“There has been some particularly existing small business supports that have been offered to the local community. But I do recognise it’s a community that’s doing it really tough.”

In other developments on Wednesday, de Waart-Hottart’s mother and father, Carolina de Waart and Alain Hottart, flew in to visit the scene.

The couple, who live in Belgium, were also at their son’s funeral in Melbourne last Friday, where he was remembered as a “hero” with a “contagious smile”.

Detective Superintendent Jason Kelly said the visit was incredibly moving.

“I think the community could appreciate it’s a very distressing time for them, very emotional,” he said.

“The police who were there, it was a very emotional time for us.”

-with AAP