SEVERAL people were injured today as explosions rocked London's Underground.
Emergency services were called to London's Liverpool Street Station after reports of an explosion shortly before 9am.
And a second incident sent emergency crews to Edgware Road station.
The whole Underground network was shut down.
Passengers were reported to be smashing windows to get out of damaged trains.
British Transport Police said the first incident, reported at 8.49am on the Metropolitan Line between Liverpool Street and Aldgate, was thought to have been caused by a power surge across the Tube network.
A London Ambulance Service spokeswoman said: "We have sent a number of vehicles to Liverpool Street station."
Police confirmed there were "walking wounded" and said paramedics have responded to one report of a person classed as "life at risk".
"There are walking wounded, but that is as much as we know at the moment," said the spokesman.
King's Cross, Liverpool Street and Aldgate stations were all cleared.