A robbery suspect and a Prince George's County police officer were wounded last night when police fired at the suspect, who has been spotted in a parking lot on Marlboro Pike. A high-speed chase followed the shooting and ended when the suspect's pickup truck crashed on Pennsylvania Avenue SE just inside the District of Columbia.

The suspect, identified as Richard (Buddy) Harrington, 40, of Shadyside, Md., was shot in the stomach and was reported in stable condition at Greater Southest Community Hospital, where he was charged on a fugitive warrant by D.C. police and faced extradition to Prince George's County.

The officer, Joseph W. Frolich, 29, was slightly injured, apparently by metal fragments that struck him in the head. He was flown to Prince George's County General Hospital in a U.S. Park Police helicopter and was kept in the hospital overnight for observation.

The incident began about 8:10 p.m. when a Capitol Heights police officer spotted a man in a parking lot in the 5200 block of Marlboro Pike who was believed wanted on a robbery warrant sworn out last February, police said. When four county police officers arrived, the suspect jumpted into a pickup truck and drove off, dragging along one officer who had reached into the truck's window.

The shooting occurred at this point, with one officer firing at the truck's rear window and another into its front window when the driver aimed the truck toward him, police said.