Detectives are investigating a string of burglaries on businesses in Rochester, Echuca and Kyabram at the weekend.
Between 11pm on Friday and 1am on Saturday, four businesses in Echuca's industrial area were hit by burglars.
A car was stolen from one premises but found at another, while stolen tools were discovered in the vehicle.
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Police believe the four incidents are connected.
A veterinary clinic in Pakenham Street was also burgled on the same night, but police are yet to determine if that too is connected.
Police believe a silver Ford Ranger utility might have been involved in that incident.
In the early hours of Saturday morning, two businesses in Rochester were damaged.
One business had marbles fired through its windows.
Thieves also broke into a third business and stole soft drinks and a cash register.
In Kyabram, a car wash was damaged and cash stolen.
A cash register was also stolen from a business in Union Street.
Police believe the incidents in Rochester and Kyabram might be connected.
Anyone with information is asked to contact the Crime Investigation Unit at Echuca station on 5438 1500.
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