UK police are investigating reports of chip & PIN fraud at a BP petrol station in Surrey, the BBC has reported.

According to the BBC, British Petroleum’s retail arm is cooperating with police in investigating possible fresh cases of chip & PIN-based fraud after customers complained of irregular transaction records regarding purchases at the aforementioned Surrey BP forecourt.

Police are looking into potentially fraudulent transactions that took place in late November at the Surrey fuel station and two other forecourts in the area belonging to Total and Shell. Reports suggest that the fraud could amount to millions of pounds.

The development comes after Shell removed chip & PIN terminals from its forecourt shops for several months last year after evidence of fraud was detected. The news has also broken on the same day that experts carrying out research for the BBC’s Watchdog program suggested chip & PIN card details could be stolen using doctored transaction terminals.