London Underground as smoke fills carriage after loud bang at Holborn station
Commuters were plunged into a state of panic as a busy Tube station was evacuated after a loud bang and smoke filling a carriage was reported.
The station was cleared at the height of the morning rush hour, sparking confusion among passengers.
Transport for London confirmed it is investigating a fire alert triggered at about 9am. Two fire engines and 10 firefighters were sent to the station.
British Transport Police has said it is working to reopen the station, and that the evacuation was caused by a defective train.
Witnesses reported on social media hearing a loud bang before being told to leave the station as smoke began filling the carriage of a Central Line train.
TfL has warned of delays on the line. Loud bang at Holborn, smoke and then an evacuation pic.
A video has...
