Elderly residents have been warned they could be targeted by a lottery scam.
Action Fraud has said the over-60s are being called by fraudsters pretending the victims have won a cash prize.
A spokesman said: “Criminals will normally get in touch by letter or email. Once they have convinced you that they are genuine, they will ask for a fee to be paid to release your winnings.
“This fee could be to pay taxes or duty, or for a solicitor, banker or judge to authorise the transaction. No genuine lottery will ever ask for any sort of fee to be paid.
“Often, this first fee will be small, but once they know you are willing to pay it they will ask for more and more money.”
To report a fraud at , visit www.actionfraud.police.uk.