Santa Rosa police are seeking witnesses to a Nov. 7 crash that resulted in the death of an 88-year-old Sonoma woman two days later, authorities said Wednesday.

Evelyn Cunningham, who had a long career in the U.S. State and Treasury departments, died Friday evening from her injuries, the Sonoma County Coroner's Office said.

When she was taken to Santa Rosa Memorial Hospital, her injuries did not appear to be life-threatening, police Sgt. Mike Neumainville said.

Cunningham was leaving the Santa Rosa Marketplace on Santa Rosa Avenue around 2:30 p.m.when she collided with another car on Kawana Springs Road, police said.

She was turning left onto eastbound Kawana Springs Road in a gray 2006 Chrysler PT Cruiser when she was hit broadside by an oncoming Ford Econoline van, police said.

The driver of the white 2010 Econoline, Santa Rosa resident Peter Holtzen, 79, suffered minor injuries, police said. He apparently was treated at a local hospital and released, Neumainville said.

Cunningham had a passenger in her car who also suffered minor injuries, police said. That person's name has not yet been made public.

Police ask witnesses or anyone with information about the crash to call traffic Officer Ken Carstensen at 543-3636.