Police are investigating the circumstances surrounding a stabbing which occurred in Lalor this morning.
Officers have been told a 22-year-old man was taking out rubbish when he was attacked at the front of his property in Melton Grove.
He was stabbed in the back before the offender fled.
The victim has been taken to hospital with non-life-threatening injuries and police are on scene.
Anyone who witnessed the attack or with further information is urged to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppersvic.com.au