The wife of Dezi Freeman, the fugitive accused of killing two police officers, has urged him to surrender and says she will cooperate fully with authorities.
Alleged gunman Freeman fled into the bush on Tuesday following a fatal confrontation at a property in Porepunkah, about 300km north-east of Melbourne.
He is accused of killing detective leading senior constable Neal Thompson, 59, and senior constable Vadim De Waart, 35.
On Sunday, Freeman's wife Amalia Freeman shared her "deep sorrow" for the deaths of the two officers.
"We echo the requests of the Victoria Police for the swift and safe conclusion of this tragedy," she said in a statement provided to the ABC.
"I lend my full support to Victoria Police in their search for my husband and will co-operate with Victoria Police in any way that I can.
"Please Dezi, if you see or hear this, call 000 and arrange a surrender plan with the police."
Tough conditions have impacted search efforts with blizzard-like conditions and lashings of rain battering the rural town.
More than 450 police officers have been deployed to Porepunkah as part of the search, which has included examining disused mines, caves and dugouts in and around the rural community.
Police say they have received several reported sightings of Freeman since he went on the run, though none have been confirmed.
"There have been alleged sightings which we're exploring," Victoria Police chief commissioner Mike Bush said.
"We can't confirm that they are of him, but if you think you see him, let us know. We'll explore it."
A police forward command post was relocated on Saturday from Feathertop Winery just outside Porepunkah to a government office in the town of Ovens, about 12km away.
Victoria Police chief commissioner Mike Bush said there had been several "alleged sightings" of Dezi Freeman, but none had been confirmed. Source: AAP / Joel Carrett
"We would like to reassure the community that police are not leaving the area."
Victoria Police charge man in Bright
Potential links between Freeman and a 61-year-old man who has been charged with weapons and drug offences are being investigated.
The man was arrested following a search on Friday of a property in Bright, about 6km from Porepunkah, and the seizure of weapons and a quantity of cannabis, police said.
Whether the man was associated with Freeman formed part of an "ongoing investigation", a Victoria Police spokesperson said on Sunday.
"As this matter is before the court we won't be making any further comment," she said.
A world-first vaccine for chlamydia in koalas has been approved for use. Source: AAP / Darren England
Police helicopters and drones have been circling the area for days in the hope of catching a sign of the fugitive's whereabouts.
Freeman, who has bush survival experience, was last seen in dark green tracksuit pants, a dark green rain jacket, Blundstone boots and reading glasses, police said.
He is believed to be a sovereign citizen, a follower of an ideology that rejects government authority and the rule of law.
