Pittsburgh Police from Zone 4 responded to reports of a cyclist struck by a vehicle at the intersection of Morewood Avenue and Ellsworth Avenue just before 10:25 p.m.
Once on scene they found a female victim with a possible head injury. She was transported to the hospital by EMS in serious condition.
The driver of the vehicle remained on scene. The roadway reopened to vehicle traffic just before 1 a.m.
The Collision Investigation Unit is investigating.