metropolitan municipal police commissioner sir cameron blair has determined that there have been three small explosions on tube trains at warren street , edge and taylor ' s garden lines , and a small explosion on a no . 26 vehicle on greenwich road in bethnal round . the london ambulance service has not found any injured people , but one who has reporting themselves to a local hospital . it is not precisely clarified if this is linked with the blasts .
Police report there has been an explosion in the tube station.