Drivers on the M62 are being warned of a new scam.
Motorists have been flagged down by drivers asking for money claiming to have run out of petrol.
Police are now urging drivers to forget the Christmas spirit and not fall victim to the scammers.
The latest incident happened at Ainley Top near Huddersfield at 3.15pm on Sunday.
A man was waving at drivers coming off the motorway claiming to have run out of fuel.
He said he was German and offered what is described as “cheap jewellery” in exchange for cash.
Police said other reports had been received and the same drivers had been known to target motorists at one junction only to appear later at the next.
Police are investigating but no arrests have been made.
Insp Christopher Norbury, of West Yorkshire Police’s Protective Services, said the latest reports from Ainley Top were similar to others received over the last few weeks.
He said the man responsible claimed to be German but spoke with no “discernibly foreign accent.”
He added: “The fact that people have stopped to help another stranded motorist shows how public spirited people are, which is nice to see at this time of year, but our advice is not to stop and instead leave it to the police.”
Two other similar incidents were also reported to police on Sunday.
The first was at 10.46am on the westbound entry slip road at junction 28 at Tingley where a man, believed to be Eastern European, was flagging cars down after claiming his bank card wouldn’t work and he needed £20 for petrol.
His car was thought be a silver Skoda.
At 11.56am, police were also called to a report of a vehicle on the M62 entry slip road eastbound at junction 24 at Ainley Top where an Asian male, who claimed he was from Germany, was seen flagging down drivers and asking to borrow money for fuel.
A silver VW Passat was seen nearby on the hard shoulder.
Insp Norbury added: “Stopping on any part of the motorway network is extremely dangerous and our advice would be to only do this in an emergency.
“The motorway network is patrolled by ourselves and officers from the Highways Agency as well as being constantly monitored via CCTV for incidents including breakdowns.”
In unrelated investigations, police would like to speak to the people pictured in the image gallery below. The people pictured in the images may be witnesses as well as suspects. If you recognise anyone, contact police on 101 quoting the reference number on the image caption.