Crossville Police are investigating a series of vehicle break-ins which took place Wednesday. Two vehicles, a 1997 Nissan Sentra and 2002 Mitsubishi Montereo, were parked along Pinewood Drive. Both vehicles were said to have been left unlocked. A 2012 Nissan Altima was also burglarized on Donna Lane and another, a 2012 Chevy Equinox, was broken into on East Center Town Drive. The owner of the Equinox told officers that the vehicle had been locked at the time.