A 61-year-old Fredericksburg woman has died of injuries she suffered in a September car crash in Manassas, Prince William County police said.

Sharon R. Pittman was driving a Nissan Sentra on Balls Ford Road near Notes Drive about 8 a.m. Sept. 24 when she veered off the road and struck the back of a tractor trailer that had been parked on the shoulder, police said. They said Pittman appeared to have suffered a medical emergency prior to the crash.

Police said Pittman died on Oct. 1. The driver of the tractor trailer was not injured.