CCTV captures £18,000 diesel theft at Ruthin garage
12 December 2012 Last updated at 19:35 GMT
Bulk fuel thefts are on the rise, according to a body that represents petrol stations across the UK.
It comes after CCTV images were released of a £18,000 diesel theft from Dyffryn service station, Ruthin.
The Retail Motor Industry Federation (RMIF) has warned this sort of crime is on the rise because the price of diesel is increasing.
Dafydd Evans reports