There are delays on the Greater Anglia line between Cambridge and Liverpool Street due to overhead line problems.
There are delays of up to 40 minutes and cancellations can be expected.
Abellio, who run the Greater Anglia rail line, has been named Train Operator of the Year at the annual national Rail Business Awards.
Greater Anglia train operator Abellio says it's made real steps in customer service and punctuality in its first year in charge.
Greater Anglia have apologised for the delays that have disrupted services today