The crash happened just before 3 p.m. at Bryn Mawr Avenue and West Rock Hill Road.
Police said the vehicle struck two parked cars and five pedestrians near a cemetery.
A 36-year-old woman and her unborn child died at the hospital as a result of injuries sustained during the crash, police said.
The four other pedestrians were being treated for their injuries at an area hospital.
Police said a physical altercation ensued following the crash.
The crash remains under investigation.