A power outage has hit the London Underground, causing major travel disruption in the capital. Follow live here.

So, here’s a breakdown of all the planned disruption to tube and train services across London this bank holiday weekend.

The Piccadilly line is one of the best-used Tube lines, stretching from the suburbs of north London to Heathrow airport. Born from the Great Northern, Piccadilly & Brompton Railway, the route’s name ...