The incident happened at about 2:30 p.m. near Silver Hill Road and Parkland Avenue in District Heights.
Police Spokesman Clinton Copeland says 51-year-old Petrello Cabbagestalk of District Heights lost control of his SUV and struck and killed 26-year-old Keylay Charmaine Smith of Forrestville and an unidentified man.
Smith was eight months pregnant. The unborn baby did not survive.
Copeland says they were walking on the shoulder because there were no sidewalks.
After striking the pedestrians, Cabbagestalk then hit a tree. He is expected to recover from his injuries.
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