No one has been arrested in connection with the three most recent raids.
Yorkshire and Humber Regional Organised Crime Unit is investigating four cash machine thefts in North Yorkshire since August, while looking into similar smash-and-grabs around the country.
The first of the North Yorkshire thefts took place on Friday, August 30, when an ATM was stolen from the Co-op store in Hunmanby, near Filey, and later found in the village of Burton Fleming in East Yorkshire. A 44-year-old Hull man was arrested and later bailed.
Concern has been raised following four raids in North Yorkshire, five in South Yorkshire, 11 in West Yorkshire, five in Humberside and one in Darlington.