A problem at a level crossing caused by snow is disrupting services between Norwich and Thetford.
Because of this, there are delays of up to 20 minutes between Ely and Norwich. There is no current estimate for when a normal service will resume.
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