There are 30 minute delays on CrossCountry services between Stansted Airport and Peterborough due to electrical supply problems at Cambridge. This is also causing problems on First Capital Connect services between King's Lynn and Letchworth Garden City.
There are also 30 minute delays on First Capital Connect services between Stevenage, Welwyn Garden City and King's Cross due to a signalling problem at King's Cross. This is also affecting East Coast trains.
There are also 40 minute delays on Greater Anglia Trains travelling between Chelmsford and London and services from Chelmsford may be cancelled.