A bucket wrapped in an insulated bag caught fire on a packed London subway train Friday, sending commuters stampeding in panic at the height of the morning rush hour. Police said they were investigating it as a terrorist attack.
Photos taken inside a District Line train show a white plastic bucket inside a foil-lined shopping bag. Flames and what appear to be wires emerge from the top. London ambulance service said they had sent multiple crews to the Parsons Green station and 18 people were hospitalized, though none had life-threatening injuries. Police advised people to avoid the area in southwest London.