There are 15 minute delays on trains running between Stevenage and King's Cross because of emergency engineering works taking place at New Barnet. Some services from Moorgate to Welwyn Garden City are also being diverted.
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