A person's been hit by a train on the East Coast rail line near Huntingdon.
Services between 'London King's Cross' and Peterborough are running up to a hour late.
First Capital Connect trains are also affected.
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