Terrorist Device Detonates on London Subway, Injuring Commuters

LONDON — A device that triggered a rush-hour fire aboard a subway train in the British capital was being investigated as terrorism Friday, police said.

Authorities confirmed 23 people had been injured at Parsons Green Tube station in southwest London. None of their wounds — mostly superficial burns — were considered serious or life-threatening.

Investigators were examining the remains of an improvised explosive device.

Metropolitan Police Deputy Assistant Commissioner Neil Basu, the senior national coordinator for counterterrorism policing, said the detonation was being treated as a "terrorist incident."

Police said no arrests had been made but would not comment on the manhunt for the culprit. London subway stations are well-equipped with surveillance cameras.

One photo shared on social media showed a bucket on fire. Wires appeared to be protruding from the plastic bag the container had been carried in. The photos do not show any extensive damage to the inside of the train.