Dysart Way is partially blocked between Catherine Street and Belgrave Circle in Leicester due to an accident between a car and motorcyclist.
The incident happened at 2.10pm today.
The motorcyclist has been taken to hospital with serious injuries that are not believed to be life threatening.
The condition of the car driver is not known.
There is congestion on Belgrave Road, Belgrave Circle and Humberstone Road.
Drivers are advised to avoid the area.
Bus company Arriva said this collision may cause delays on services 5, 5A, 6, 53, 53A, 56, 58, 58A, 126 and 127.
