Delays of up to 25 minutes on Greater Anglia between Ipswich and Norwich.
It is due to a road vehicle hitting a bridge between Stowmarket and Diss. Tickets being accepted on First Capital Connect services.
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