(Portland, OR) -- An investigation is ongoing into an officer-involved shooting in St. Johns. The Portland Police Bureau says officers were responding to a report of gunfire early yesterday morning when the incident happened. Police say an officer contacted the suspect but he got into a truck and tried to run over the officer, who fired at the vehicle. The truck hit a patrol car and fled. Police lost the vehicle in the neighborhood. It's unknown whether the driver was injured by the shooting.