Terror returned to the UK capital as an IED went off in a subway train in London.

The device injured several people and made the British police go in high gear with armed response teams swarming the Parsons Green station in Southwest London.

At first it was unclear whether the incident was terror related but after a couple of hours the Deputy Assistant Commissioner Neil Basu declared that indeed the police were dealing with a terrorist attack and would be investigating further.

Witnesses at the scene reported people badly burned and a stampede caused by panic after the explosion. Thankfully, despite the injuries, no deaths have been reported yet.