Residents have been warned not to give money to a potential fraudulent caller pretending to be working on behalf of a charity.

Earlier this week police urged members of the public to stay alert following reports of a Flintshire resident being scammed out of £15,000 over the phone by a person purporting to be working for BT.

Now the Wales Air Ambulance Charity has stated: "We have been made aware of a potential telephone scam where somebody is trying to gain money from people under the guise of Wales Air Ambulance.

"Individuals/organisations have been contacted via phone by a man selling advertising for the 'Wales Air Ambulance magazine’.

"He describes himself as a 'fundraiser' for our charity and indicates that the money would go towards our lifesaving work.

"The telephone number from which the call is made is flagged as being from Liverpool.

"We do not believe that this is a valid fundraising exercise on our behalf and we have made the police aware.

"If you have received this call, please contact the Wales Air Ambulance PR team on 0300 0152 999 (option 1) or email"