A signal failure at Earls Court has caused severe delays on London Underground.
The District line is suspended between Earls Court and Edgware Road, with severe delays across the rest of the line.
Tube users are advised to leave early to allow for the delays, with the Piccadilly line also part suspended between Hammersmith and Northfields/Rayners Lane due to a signal failure at Acton Town.
Continued delays are also expected on the roads in Central London as the men's triathlon takes place in Hyde Park, adding to the congestion caused by lanes reserved for Games Family traffic.
