Terrorist Device Detonates on London Subway, Injuring C…

Saphora Smith and Alexander Smith and Nick Bailey and Max Burman and Jason Cumming and Alastair Jamieson and Petra Cahill and Fiona Day and Shamar Walters

LONDON — The detonation of a device aboard a subway train in the British capital on Friday was being investigated as terrorism, police said.

Authorities confirmed 29 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.”

On Friday evening, the prime minister raised the threat level for international terrorism from severe to critical — the highest level and an indicator that “an attack is expected imminently.”

Police said no arrests had been made. Multiple law enforcement officials briefed on the investigation said Friday evening authorities in the U.K. had identified a person they believe is responsible for the attack. There was an active manhunt underway, the officials added.

London subway stations are well-equipped with surveillance cameras.

ISIS made its customary claim of responsibility for the attack, without providing any supporting evidence.

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.

Image: Incident at Parsons Green Tube station

The white plastic bucket ignited aboard a subway train near Parsons Green station in London on Friday.