A speed restriction over a defective track between Gidea Park and Harold Wood means that trains have to run at a reduced speed on some lines. Trains running between Romford and Shenfield may be cancelled, delayed by up to 10 minutes or revised.
This is impacting services between London Liverpool Street and Southend Victoria/Southminster/Witham/Braintree/Clacton-on-Sea/ Colchester Town/Colchester/Harwich International/Ipswich/Norwich
Disruption is expected until 7.30pm.