Britons are facing travel chaos as thousands of travellers have seen their trains cancelled due to a flooded tunnel near Ebbsfleet International station in Kent.
High-speed Southeastern services running between London St Pancras and Ebbsfleet have been suspended until the end of the day.
Eurostar has cancelled all services to and from Paris, Amsterdam and Brussels, "until the end of the day" following the severe flooding.
Southeastern railway shared images of the serious flooding online.
Southeastern railway shared images of the serious flooding online
SW Railway
The rail company said: "There is a very limited service to and from St Pancras International for the rest of the day because of flooding in a railway tunnel near Ebbsfleet International."
As heavy rain and strong winds continue to batter parts of the country, thousands of passengers are left stranded.
Eurostar said: "Due to an infrastructure problem on the high-speed line near London, we're having to cancel some trains on our route to/from London on Saturday 30 December."
Chiefs decided at 4am this morning that no trains at all could be run through the tunnel.
Travel editor Simon Calder said that St Pancras was "in chaos" today following the series of cancellations.
He said: "As a result, we have seen at least 20 Eurostar trains cancelled to and from Paris, Amsterdam and Brussels."
"That means, unfortunately, it's around about 16,000 people who have been told they are not going anywhere, and they will not be able to get on a train in standard class for the rest of the day."
Across the rest of the country, Cross Country said their services may be "subject to last-minute cancellations" as LNER, Avanti West Coast and London Northwestern Railway told passengers to check before they travel.
A Eurostar representative said: "Eurostar services to and from London are being cancelled and there are severe delays to services due to infrastructure issues caused by flooding in one of the Thames tunnels located between St Pancras International and Ebbsfleet.
"Eurostar is working with Network Rail to keep customers updated.
"The safety and security of our customers are of the highest importance to us."
