EUROSTAR has this morning suspended all services to and from St Pancras due to a trespasser on the tracks.
Dramatic pictures showed a man being led away by cops and the disruption is likely to cause chaos for thousands of passengers.
The company has now urged all customers not to travel on Saturday and told passengers to cancel their journeys.
It comes more than 12 hours after British Transport Police first received reports of a person on the line at 7pm last night.
Southeastern services have also been affected and the company told customers its High Speed trains will not be running.
A spokesman said: “High Speed trains will not run to and from St Pancras due to the ongoing trespass incident just outside the station.
“The person is above the High Speed lines and as such the overhead wires can not be recharged. Please use mainline trains to Victoria or Charing Cross.”
Eurostar added: “We have suspended all services to and from London St Pancras until 9.45am, due to a trespasser on the tracks.
“We strongly recommend you not travel this morning and please cancel your journey or exchange ticket free of charge.”
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