Greater Anglia says lightning caused a temporary loss of power to a signalling system between Manningtree and Ipswich.
The power has since been restored, but track circuit failures in the area mean some Essex lines are blocked.
⚠ – Lightning has caused a brief loss to the signalling system between Manningtree and Ipswich. The power has been restored, but there are track circuit failures in the area.
— Greater Anglia (@greateranglia) October 2, 2023
The rail operator said disruption can be expected “until further notice”.
A statement on its website says: “Response teams will be attending, but in the meantime trains are unable to run.”