At least 23 cars were broken into in just 45 minutes Tuesday morning in Claymont, Del.
Detectives tell us they now think the group who did it may also be behind recent break-ins in Upper Merion Twp., Pa.
Police investigating after 23 cars broken into at several Claymont apartment complexes
The two departments are now working together.
In the meantime, they remind residents to lock their doors and park in well-lit areas, when possible.