UPDATE: The female patient was pronounced deceased at the hospital.
The investigation is ongoing.
At 9:25 a.m., Pittsburgh Police from Zone 4, Fire and EMS were dispatched to Terrace Street and Sutherland Drive for reports of a pedestrian struck by a shuttle bus.
Responding units located a female who was unconscious and in cardiac arrest. Bystanders administered CPR until firefighters from 10 Engine could take over.
Pittsburgh EMS transported the patient to the hospital in critical condition.
The Collision Investigation Unit responded to the scene to investigate.