AP 9/15/17:
Fire on London train at morning rush treated as terrorism
LONDON (AP) -- 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.
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London's Metropolitan Police said counterterrorism investigators were at the Parsons Green station but it was "too early to confirm the cause of the fire, which will be subject to the investigation that is now underway by the Met's Counter Terrorism Command."