Staff at a County Armagh bank intervened and raised the alarm after a bid to swindle a customer out of £20,000.
A criminal investigation is now underway into the incident, it has been confirmed tonight (Wednesday).
Chief Inspector Jon Burrows praised the staff of the Ulster Bank branch in Lurgan.
He said alert staff there had “spotted the signs” of a customer “being defrauded into transferring £20,000 to a scammer”.
Chief Inspector Burrows has offered a personal ‘thank-you’ to those who called in his officers.
He added: “Following their call we attended the bank promptly and together persuaded the victim to stop the transaction.”
Chief Inspector Burrows also confirmed that a “criminal investigation is underway” after the incident.