There are severe delays on the Central line after a "fire alert" at Holborn station.

Passengers reportedly heard a loud bang at the central London station before smoke filled the platforms.

TfL closed the station and there are severe delays along the whole Central line.

The London Fire Brigade were called at 9.09am, and ten firefighters are investigating.

Tickets will be accepted on London Buses and on Chiltern Railways between West Ruislip and Marylebone.