The theft happened in Old Stowmarket Road, Woolpit (Image: Google Maps)
About 1,000 litres of diesel has been stolen as thieves targeted a building site.
According to Suffolk police, the fuel was taken on two separate occasions between Thursday, February 9 and Wednesday, February 15 in Old Stowmarket Road, Woolpit.
Unknown intruders broke into the site and stole the fuel from tanks.
Following this incident, police are appealing for information.
Anyone who has any information about the incident or notice and suspicious activity in the area should contact Suffolk police, quoting crime reference 37/9275/23.
