The incident took place around 11 p.m. on Feb. 27 at the Cumberland Store on North Main Street in Naugatuck.
The suspect, described as a black male, wearing a distinctive black and red sweatshirt, reportedly grabbed the money from the victim after he used the ATM machine inside the store, police said.
Anyone with information is asked to contact the Naugatuck Police Department at 203-729-5221.
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