Police are hunting a gang of men who have been flagging down county drivers and offering them fake gold jewellery for cash.
Motorists are being warned about the scam which has seen conmen flagging down vehicles and offering to sell gold jewellery to them which later turns out to be fake.
A number of incidents have been reported across the county, with recent locations including Kettering Road, Islip, London Road, Braunston, the A14 at Welford, Rothersthorpe Road, Kislingbury and High Street, Weedon.
The offenders will flag down cars and tell motorists a story along the lines of having run out of fuel and having no money on them. They will then offer to exchange gold jewellery for cash.
Where money is exchanged, the buyer will then discover that the jewellery they have bought is actually fake.
A police spokesman said: “We are unsure whether this is one group or several groups operating this scam.
“We would urge motorists who find themselves approached to refuse any offers of jewellery, to take in as much information about the offenders as possible and to contact us on 101.”
Information can also be given anonymously to Crimestoppers on 0800 555111.