The burglary happened at a detached building on Concord Road in Shirley at about 3:15 a.m. on Sunday, July 24, according to the Suffolk County Police Department.
SCPD said a suspect or suspects broke into the building and stole two 6-month-old French Bulldogs and five 1-month-old French Bulldog puppies.
The owner was sleeping in a residence located at the rear of the property and didn't wake up during the burglary, police said.
SCPD asked anyone with information about the incident to call police at 631-852-8752 or Crime Stoppers at 1-800-220-TIPS.
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