"New Canaan Police wish everyone a Happy Thanksgiving and remind residents to "Lock it or Lose it," the department said via Twitter @NewCanaanPolice.
"5 more cars that were left unlocked in driveways were entered last night and items were taken. This crime is preventable. Lock your cars & remove valuables!!"
The police department has reported multiple stolen cars in recent weeks.
Earlier this month, Chief of Police Leon Krolikowski blamed a spree of car thefts and break-ins on suspected gang members from Waterbury.
Many towns in Fairfield County are experiencing similar crimes from the same gang, he said.
These incidents often occur during the early morning hours, with thieves targeting unlocked cars, Krolikowski said.
One resident responded to the police department Tweet by saying: "I'm sorry NCPD, how stupid are my fellow residents!?! We don't live in Mayberry! Wake up neighbors! #commonsense"
Click here to follow Daily Voice New Canaan and receive free news updates.