Delays of up to 20 minutes on Southeastern London bound between Gravesend and Dartford due to signalling problem between Northfleet and Greenhithe for Bluewater.
Trains are having to run at reduced speeds on London-bound lines, causing delays. There is no current estimate for when a normal service will resume.
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A group of divers have commemorated one century since the end of World War One by hanging a plaque on the bow of a shipwreck off Shoreham.