In the past 2 weeks, the City of Medford, as well as surrounding cities and towns, have experienced a rash of catalytic converter thefts from Toyota Prius motor vehicles. The catalytic converter is a part of the exhaust system of the car. The individuals involved are using some type of tool to cut the converter off the exhaust. These thefts are occurring during the overnight hours. Please be mindful of any unusual noises that occur in the late night or early morning hours. Call Medford Police Dispatch at 781-395-1212 if you think you see or hear anything suspicious.