Greenwich Police announced on Thursday that there were five more thefts of motor vehicles in the last few days.
Every single car had been left unlocked with the keys within.
Greenwich Police recovered 18 of the 22 cars stolen so far this year.
All but two were stolen by juvenile offenders from outside of Greenwich.
On April 7 three cars were stolen: A Maserati from Byram, an Audi from Byram and a BMW from central Greenwich. Both the Maserati and BMW were recovered from Waterbury.
Also, on Thursday a Mercedes-Benz was stolen from Glenville and a Toyota was stolen from central Greenwich. The Mercedes was recovered nearby from where it was stolen in Glenville.
Lt Mark Zuccerella said the midnight shift had been successful in preventing many more thefts.
“We investigate each car theft and have some leads to follow up on, but the best preventive measure is for the vehicle owners to remove their keys and lock the car doors,” he said. “Lock It or Lose it.”