An elderly woman suffered serious injuries after being hit by a double-decker bus in Lupset this morning.
The incident happened at 9.50am on Horbury Road close to the junction with Cumbrian Way.
The 87-year-old, who is believed to be from the area, was taken to Leeds General Infirmary by air ambulance.
A spokesman for West Yorkshire Police said she was in a serious condition.
Part of the road has been closed and traffic is being diverted onto Broadway.
Bus services have also been affected. The 128 and 130 Arriva services have been diverted via Broadway, Dewsbury Road and George-a-Green.