The Providence Police Department is searching for a suspect who they said drove off in a car with someone else’s children inside. Authorities told NBC 10 News that a man was parked on the side of Washington Street waiting for a family member Wednesday night around 9:45. The car was running and his two children were in the backseat. Police said an unknown suspect ran up to the car and jumped in before driving away. Authorities said they later found the car and the children, who were not harmed, on Elmwood Avenue in Providence.