(Gresham, OR)  --  An investigation is ongoing into an officer-involved shooting in Gresham.  Police say the shooting happened last night while officers were responding to reports of a suspicious vehicle in the 800 block of Southeast 187th.  Responding officers followed the driver and then pulled him over at 181st and Ash.  Officers say the man drew a gun on them, prompting them to shoot him.  He was treated at the scene and then rushed to a hospital.  No word on his current condition.