London Underground Bombing Injures 22

A bomb exploded on a London Underground train on Friday morning, injuring at least 22 people now hospitalized. From the New York Times:

The National Health Service said that 18 people had been taken to hospitals and that another four had gone on their own, including eight at Chelsea and Westminster.

[…]It was the fifth major terrorist attack in Britain this year, following a vehicular and knife attack near Parliament in March, a suicide bombing at a rock concert in Manchester in May, and a van and knife attack around London Bridge and a van attack outside a London mosque, both in June.

Witnesses have described the bomb’s detonation—an incomplete one according to officials—as a sudden conflagration rather than an explosion. One witness told Sky News that it looked like a “large match” had been struck.

Pictures of the device have been shared on social media:

Scotland Yard is still searching for the person responsible. In tweets, President Trump denounced the attack and argued for a strengthened travel ban.