(085 words) Explosion at London underground station An explosion on a Tube train in south-west London is being treated as terrorism, according to police. Passengers were injured following the blast and fire at Parsons Green station 07:20GMT, Parsons Green station: Explosion reported on board District Line train travelling to central London Hyde Park Buckingham Palace River Thames Regent’s Park Westway KENSINGTON FULHAM KENSAL GREEN 1.6km 1 mile Detail map LONDON Alleged device on train at Parsons Green underground station Sources: BBC, The Guardian Picture: Twitter