SCAMMERS posing as banks and tax officials have tried to steal money from almost 60 people across the north, police have said.
The PSNI said it received 58 reports of attempted fraud on Monday alone.
One of the victims did hand over some money.
Most of the attempted frauds - around 52 incidents - were from people claiming to work for Revenue and Customs. Others included cold callers claiming to be from a bank.
Chief Superintendent Simon Walls said officers had received 58 reports from people in counties Antrim, Down and Armagh.
"Some of the victims said they received phone calls and automated voicemail messages from people claiming to represent the HMRC, threatening them with arrest if they don’t pay taxes they owe," he said.
“We are reassured that people are able to spot these scams, and people are picking up the phone to report them to us.
“However, we would continue to urge members of the public to always err on the side of caution with any text, call, email or letter asking for payment or personal details in order to release money, refund fees, pay lottery wins or supply a holiday, giveaway or service."
He urged anyone who may have been contacted by scammers to report any unsolicited calls, emails or letters to Action Fraud via www.actionfraud.police.uk or by phoning 0300 123 2040, or call police on the non-emergency number 101.