Good Samaritans who stopped for a lone man posing as a stranded motorist have fallen victim to the fraud. The man carries a green fuel can and is believed to stand on various slip roads between junction 19 of the M4 (M32 junction) and junction 15 (A419 Swindon turnoff).
The man claims his vehicle has broken down elsewhere due to running out of fuel he asks motorists for a lift to the nearest service station, primarily Leigh Delemere or Membury.
En route he claims to take a call from the Highways Agency or police who require his car to be moved at a cost of around £800. Those giving him a lift have then offered to help out towards the cost. Once dropped at the services they never hear from him again.
Anyone with information should contact Crimestoppers on 0800 555 111where information can be left anonymously if they wish.
More top news
Philippa has the latest weather update for the east
Philippa has the latest weather update for the west
A problem with overhead power cables in the Channel Tunnel has caused major delays for passengers on Eurostar services.