Environmental protesters have targeted owners of 'gas-guzzlers' and 4x4s in Oxford.

Three car-owners in Marston had their tyres let down by self-styled environmental campaigners last night.

They left behind letters on the vehicles' windscreens claiming the vehicles' owners were responsible for increased carbon dioxide emissions and warned them not to drive their cars.

The victims - the owner of a Mitsubishi truck in Weldon Road, Subaru Forester in Nicholson Road and Mitsubishi Shogun in Ferry Road - all lived within the same area of Marston.

Police have issued an appeal for information and urged people not to take the law into their own hands.

Anyone with information is urged to contact police on 08458 505505 or Crimestoppers on 0800 555 111.