Revenue and gardaí have issued a warning over a telephone scam demanding the immediate payment of a tax bill.

A number of people have said they were called by a man or woman claiming to be from Revenue and asking for the bill to be paid over the phone.

Both gardaí and the Revenue said the calls are not legitimate and have urged people to be wary of any contact from an unsolicited source.

They warned against giving details of credit/debit cards, bank accounts or PPS numbers to anyone who asks for such information in an unsolicited call.

Gardaí have advised anyone who has received such a phone call to report the matter to their local garda station or the Garda Confidential Line on 1800 666111.

In a statement, Revenue said that anyone who was contacted over a tax demand and is in any doubt to contact the Collector General Division on 1890 20 30 70.

Revenue said it is not aware of anyone being taken in by the scam, but urged anyone who may have given personal information, to contact their bank or credit card company.