Two cars were involved in a crash on St Helen's Lane at the junction with Adel Lane in Adel at about 10.55am.
A woman was trapped and had to be freed by fire crews before being taken to hospital by ambulance.
There is currently no indication as to her age or the extent of her injuries.
Crews from Cookridge and Moortown attended the incident.
The crash is not related to another two car collision on Bradford Road this morning in which a woman was reported to be trapped in a car.-> Join our Leeds Crime & Incidents Group for the latest stories like this as we get them