10.15am (GMT):

Emergency services and Counter terrorism officers are at the scene
Emergency services and Counter terrorism officers are at the scene
London's Metropolitan Police and Counter Terrorism officers have now confirmed that they are treating the explosion on a train at Parsons Green, West London as a terrorist incident.
A "major incident" has also been declared at the nearby St. Mary's Hospital.
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The bucket carrying the device on fire in the train carriage
The bucket carrying the device on fire in the train carriage