Motorists are being warned to watch out for fuel thieves after reports of six separate incidents in South Holland over the past week.
Red diesel or oil has been stolen from vehicles in Moulton Chapel and Pinchbeck, with two reported thefts each in Moulton Seas End and Spalding.
Each theft has taken place during the night and people are being urged to report any suspicious behaviour in their area to police by calling 101.
In addition, motorists are being advised to park in well-lit areas and take extra security measures like using the Smartwater security marking system.