A photo posted on social media showed personal belongings and a white bucket in a supermarket freezer bag with what appeared to be wires coming out of the top on the floor of one train carriage.
A passenger shared images of his singed hair after the incident. “Charred head from the fireball at Parsons Green,” Peter Crowley tweeted.
British Police Treat London Tube Station Incident as Terrorism; 18 Hospitalized
"At present we are aware of a number of people who have suffered injuries… Deputy Assistant Commissioner Neil Basu, the senior national coordinator for CT policing, has declared it [the blast] a terrorist incident," police said in a statement.