Limavady scam: Tens of thousands stolen from bank accounts
12 May 2014 Last updated at 18:25 BST
Up to 30 people in Limavady, County Londonderry, have lost tens of thousands of pounds in "serious and sophisticated" banking fraud in the past two months.
Detectives have said a gang has used telephone and computer scams to divert money from bank accounts.
Keiron Tourish reports.