Police are warning Connecticut residents to lock their cars after break-ins in several towns.
Many police departments said that they have added extra patrols and undercover officers to crack-down.
West Hartford police said they have seen as many as 40 burglaries and up to a dozen stolen cars in the past month.
Many other towns in Hartford county have had the same issue and now they're teaming up.
West Hartford police are now working with East Hartford, Hartford, New Britain and Glastonbury.
Leiutenant Eric Rocheleau said if a car key is left inside, the criminal will take the car.
"I think it's a number of groups of people and they are realizing it's very easy to do. You go out you look for open cars, these are all open doors," said Rocheleau.
The West Hartford Police Department suggests residents lock their vehicles at all times, never leave keys or fobs inside cars, remove any valuables from vehicles, never leave vehicles running unattended, park inside a garage whenever possible, and check exterior home lights to assure they are working and pointed in the right direction.
Officials said people should be on lookout as well.
"You gotta lock them up. Call in suspicious cars, put your exterior lights on," said Rocheleau.
Police said to notify police if you notice items missing from your car.
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