Six men have used a digger to rip an ATM from a wall in an early-morning raid.
The gang, armed with at least one gun, targeted the Bank of Ireland machine in Tinahely, Co Wicklow with the long-armed digger at 5.45am on Sunday.
They stole a variety of vehicles to use in the robbery including a black Mitsubishi Pajero, registration 03 CN 712, taken from Tullow, Co Carlow, a silver Toyota Landcruiser registration 06 KK 946 stolen overnight from Castledermot, Co Carlow and a tractor and trailer unit snatched from Clonegal, Co Wexford.
All the vehicles were left at the scene and the bandits fled in a dark car.
"We are unaware of the amount of cash taken at this time," a garda spokesman said.
"No-one was injured during the incident."
Gardai believe there were a number of people in the area at the time and officers are appealing for witnesses to come forward.
They are also urging anyone who saw the vehicles being stolen or en route to the scene to get in touch.