Police label Ballarat mum Samantha Murphy's disappearance 'suspicious'

The time since Ballarat mother Samantha Murphy disappeared and a lack of leads is suspicious, police say as investigators continue sifting through information.

The 51-year-old mother of three left home in the morning of 4 February to go jogging and has not been seen since. Source: AAP / James Ross

Key Points

• Police say the disappearance of Ballarat mother Samantha Murphy is suspicious.
• Police Commissioner Shane Patton said the situation was unusual due to a lack of trace or leads.
• No sinister circumstances surrounding Murphy's disappearance have been identified.

Police say the disappearance of Ballarat mother Samantha Murphy is suspicious, 10 days after she went missing.

The 51-year-old mother of three left home at Eureka Street in Ballarat East on 4 February to go jogging and has not been seen since.

Police Commissioner Shane Patton on Wednesday said the situation was unusual because police haven't been able to locate any trace or find any leads to Murphy.

"When someone's been missing for this period of time, we have no trace, clearly there must be some suspicions there because we haven't been able to locate them," he said.

Dozens of volunteers and search crews have scoured areas of the Ballarat region including Buningyong, Eureka and Canadian state forest to no avail.

Missing Persons squad detectives went to Ballarat to investigate.

Police said on Saturday they had not identified any sinister circumstances surrounding Murphy's disappearance but were very concerned about her wellbeing.

"Obviously Missing Persons is involved, it's suspicious, whether it means there's foul play involved or not, I don't know," Patton said on Wednesday.

"But detectives investigating a matter where a woman's been missing for a significant period of time, call it unusual, call it suspicious, but it certainly is of significant concern to us."

Detectives have been working with telecommunications technicians to track the route Murphy travelled after confirming she had a smartwatch and phone on her.

Police are also sifting through CCTV footage submitted by the public to try to piece together Murphy's final documented movements, saying a full-scale search will only resume if fresh information emerges.

Police are keeping up the scale of their search for missing 51-year-old Ballarat mother Samantha Murphy, appealing for dashcam vision in the area. Source: AAP / James Ross

"Missing Persons is tracing, stepping through timelines, looking at CCTV, examining many information reports we've received from the public," the commissioner said.

"So it's still early days but the concern is obviously there given that we've really got no leads."

The mother of three is described as mentally and physically fit and was training for an upcoming race by doing 15km runs.