[jpatt]

The line itself isn't being serviced, it is the station. UK-bound lines take up excessive space due to Brexit-related security controls, so there isn't enough space for both the security and the construction areas.

They're still running the line from London to Amsterdam, which is why the line is still running and why the trains have to deadhead back.

[JoeSpaghettio]

That isnt actually a brexit thing. There always was passport controls as the UK was never part of Schengen.

[jakubadamw]

The UK was never part of Schengen, but it was part of the single market. So while passport/ID controls have always been performed on the UK border crossings with other EU countries, customs controls had not – until Brexit.

[jpatt]

I am just echoing the article:

  There will not be sufficient space to handle London-bound passengers at the station, given the more intensive post-Brexit formalities.

Not sure about the space intensity of pre- vs post-Brexit controls to fact-check the article.

[martinald]

Nothing to do with Brexit, same thing happened before. It's because the UK wasn't in Schengen and the channel tunnel regulations require security (which is a waste of time, but it's because the tunnel was inaugurated when the IRA bombing campaign was in full flow)