Police and the Ontario Fire Marshal`s Office are investigating a suspected arson at an industrial storage yard in Barrie.

Emergency crews were called to 472 Tiffin Street shortly after 11:30 p.m. Wednesday. Police said multiple pieces of heavy equipment had been tampered with.

After the fire was extinguished from a Caterpillar Rock Truck, investigators found evidence that the fire was deliberately set.

Three Rock Trucks and two Excavators had also been tampered with police said in a press release. 

The Forensic Identification Unit is also on scene assisting with the investigation.

Anyone with information is asked to contact Investigative Services at 705-725-7025 ext. 2129 or Crime Stoppers at 1-800-222-TIPS.