london metropolitan police commission sir ian blair has confirmed that there have been three small bombs on subway trains at warren street , oval and lord ' s bush stations , and another small explosion on a no . 26 bus on kensington road in finchley green . the london ambulance team has not reported any injured people , but one person has attributed themselves to a local psychiatrist . it is not yet known if this is links with the incident .
Police report there has been an explosion in the tube station.