Organised crime groups (OCGs) are thought to be using cash stolen from ATMs across Northern Ireland to fund other crimes like drug importation and money lending.
The PSNI said it is keeping an "open mind" as to what OCGs are involved in the 14 ATM theft attempts made since the start of this year.
Six of those 14 attempts have been successful, with one incident seeing £94,000 stolen from a cash machine in County Tyrone.
