Several Tube lines are severely delayed on Thursday afternoon due to a casualty on the tracks.
The Circle, Hammersmith & City, Metropolitan and District lines are affected.
There are minor delays on the Jubilee line.
Meanwhile there is major disruption between London Paddington and Swindon / Oxfor after a fault with the signalling system and a trespasser on the railway between Didcot Parkway and Swindon.
It comes after trains between central London and Heathrow were badly disrupted.
A good service was being reported on the rest of the lines.
