At around 4:00am on Sunday morning, Police were called out to Central Earthmoving in Woorree.
On arrival, Police discovered six earth moving vehicles had suffered damage. Police say the "senseless damage" included smashed windows and fire extinguishers being expelled inside the vehicles.
Police say they observed a white Mitsubishi Triton leaving the area, and inquiries are continuing.
If you know anything please contact Geraldton Police on 9923 4555.