CCTV footage of diesel thieves stealing £18k worth of fuel
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.
Thieves used a HGV lorry to steal more than 12,000 litres of diesel from the petrol station.
A spokesman from North Wales Police said: "We're appealing to anyone who may have seen someone acting suspiciously on the forecourt of the petrol station on Denbigh Road."
The theft happened between 22:00 and 23:30 GMT 22 November.
In the CCTV footage a person is seen pacing the forecourt and 40 minutes later a lorry arrives on the scene to siphon off the fuel.
"In 53 years of operating this is the first time it's happened to me here," said the station's owner David Evans.
"We received a delivery the day before, whether they knew about this I'm not too sure, but because of the delivery that's the amount of fuel that they had."
North Wales Police said anyone with information can call 101.