A female pedestrian in her 30s is in life-threatening condition after she was struck by a TTC bus Wednesday afternoon.

Police said the woman was originally struck by the bus around 3:40 p.m. in the area of Progress Ave. and Sheppard Ave., and was taken to hospital with serious leg injuries.

Police received an update later in the day that her condition had slipped into life-threatening.

There is a bus stop at the intersection of Progress Ave. and Sheppard Ave., but it’s unknown at this point whether the woman was waiting for a bus when she was struck.

The intersection was closed to allow Traffic Services to investigate.