Businesses have been urged to take precautions against fuel theft as offenders continue to target industrial sites in north Lancashire.
Officers are looking in to a number of cases where thieves have siphoned large amounts of diesel and petrol from company vehicles left out in the open.
A CCTV still from a high-value theft in Lancaster has now been released in a bid to find one of the potential offenders.
Eight vehicles were targeted at the Lune Industrial Estate in October last year, with more than £1,200 worth of fuel being stolen.
Sgt Simon Balderstone, said: “Fuel theft can have a significant financial impact on a business.”