Cigarettes and tobacco products worth about £2,500 have been stolen from the Tesco petrol station in Angel Drove, Ely, in Cambridgeshire.
Offenders forced entry to the garage forecourt shop by removing a rear window at about 3.30am on Monday, May 25.
They then forced open the shutter to the cigarette and tobacco storage behind the till area and removed a large quantity of cigarettes and tobacco before leaving the building via the same forced window.
The offenders are believed to be two men wearing gloves and balaclavas, one wearing a blue hoodie with pink writing and the other wearing a black hoodie.
Anyone with information or anyone who is offered cigarettes for sale should contact PC Andy Harding on 101 or Crimestoppers, anonymously, on 0800 555111.