Passengers are facing delays on the Norwich to London train line tonight.

Train operator Greater Anglia is reporting that services may be delayed by up to 50 minutes or revised and that disruption is expected until 11pm.

A statement from Greater Anglia said all lines are currently blocked due to trespassers on the track at Chelmsford.

There are also delays due to a fault with barriers at a level crossing between Diss and Norwich meaning that trains are having to run at a reduced speed.

For more information, including details of Greater Anglia's Delay Repay scheme, visit www.greateranglia.co.uk