RIDGEFIELD \u2014 Police are investigating a rash of motor vehicle thefts that occurred over the weekend. Four vehicles were reported stolen from residences on Island Hill Avenue, Hunter Lane, Jefferson Drive and Prospect Street during the early morning hours of Sunday. Police said the targeted vehicles had been left unlocked with keys left inside. \u201cWhile most of the past stolen vehicles have been recovered after a short time, we continue to urge all residents to be diligent with securing your vehicles and removing your personal effects overnight,\u201d Capt. Shawn Platt said. Anyone with information or video footage pertaining to the thefts is urged to call Ridgefield police\u2019s detective bureau at 203-431-2794, or the confidential tip line at 203-431-2345.