There's disruption on Greater Anglia trains between Liverpool Street and Shenfield, and between Liverpool Street and Colchester due to a signalling problem at Ilford.
Some trains may be cancelled and others may be stopped while the problem is being fixed. Journey times may be extended by up to 50 minutes. There is no estimate for a normal service.
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