It is believed a fight broke out in Jonathan Drive in Darley about 7.30pm on Saturday, with   a 33-year-old man left with serious injuries including stab wounds to his back. He was taken by ambulance to the Royal Melbourne Hospital where he remains in a stable position.

Moorabool Criminal Investigation Unit Detective Sergeant Tony Coxall said the fight broke out near the Darley Neighbourhood House.

An 18-year-old man was arrested soon after, but was released without being charged and will continue to assist police with the investigation.

Detective Coxall said he believed there were a number of witnesses to the incident and encouraged them to come forward.

“It is believed the males may have been known to each other but we would like to speak to anybody who knows anything about the incident,” he said.

Meanwhile, detectives are also investigating a series of burglaries in Ballan over the weekend.

A number of unlocked cars and a house were broken into on Fisken Street on Saturday. Some costume jewellery was stolen from the house, but no items were stolen from any of the cars.

“People have to start taking more care securing their items,” Detective Coxall said.

Detectives in Bacchus Marsh also made a breakthrough arrest after multiple burglaries at a car wash under construction on Holts Lane, Bacchus Marsh.

Police arrested and charged a 22-year-old Rockbank man on Friday with two counts of burglary over the theft.

It is alleged he stole about $9000 in cash and equipment, as well as causing about $1000 in damage.

Witnesses to any of the incidents are asked to contact Moorabool CIU on 5366 4545 or CrimeStoppers on 1800 333 000.

patrick.nolan@fairfaxmedia.com.au