A Victorian father-of-two has been killed in a head-on crash allegedly caused by a driver trying to flee police.

A Kia sedan was seen speeding and driving erratically after leaving the scene of the crime before it caused a head-on crash involving three vehicles on Bulla-Diggers Rest Road in Diggers Rest about 3.30pm yesterday.

The crashed claimed the life of 42-year-old Craigieburn father Naver Singh, who was a tradesman, and was on the way to a job site when he was struck.

READ MORE: Consent, stealthing and revenge porn: What to know about changing sex assault laws

The out-of-control Kia ran into the rear of the Jeep, which the impact of that crash then forcing the Jeep into Singh's path.

He died at the scene.

A woman inside the Jeep was treated for injuries.

A 23-year-old from Wallan is in police custody.

Singh's friends have paid tribute to a man they say would have done anything for his family.

"It's extremely shocking," one friend said.

"I'm still coming to terms with this. I hope that someone tells me this is untrue and Naver is still there."

Police have alleged the driver of the Kia was running from police after an earlier incident at a home in the nearby suburb of Sunbury, where a young couple was "attacked at random" by a group armed with a knife and a taser.

The group allegedly fled the scene in the Kia before police arrived.

Police said officers tried to intercept the Kia twice before deciding it was too dangerous to chase the car.

Minutes later, the crash occurred.

Drivers are being are asked to check their cars for dashcam vision if they were in the area yesterday.