Several Tube lines have been hit with severe delays as commuters head home on Monday, as well as the London Overground.
The Central, District and Metropolitan lines are severely delayed in parts while the Elizabeth, Hammersmith & City and Jubilee lines have minor delays.
Trains running between Charing Cross and London Bridge have resumed normal service after a protest on a key railway bridge came to an end.
A demonstrator climbed up onto the structure at around 7.45am on Monday morning after using a ladder he had brought with him, a witness told the Standard.
The incident affected services between Charing Cross and London Bridge, but by 2pm, the incident had been resolved.
Pictures previously showed a large area around the bridge cordoned off with emergency services at the scene.