No group has said this was them. Nobody has said what triggered it, how many trains or people are affected, or how long it'll last.
That's everything we know.
Why this mattersSo why does one station matter this much?
Because Calais-Fréthun isn't just any station. It sits on the Channel Tunnel route. Every Eurostar train between London and Paris has to pass through it.
Shut that station, and you shut the fastest way between the two capitals.
And here's the scale of it. Eurostar carries around 11 million passengers a year on this one route. So this isn't a few delayed trains. It backs up services on both sides of the Channel at once. You can't just reroute a train the way you'd reroute a car around a closed street.
Now, France has been here before. Bomb alerts at big transport hubs happen, and most turn out to be false alarms or hoax devices, cleared within hours.
And the tone from the authorities so far backs that up. They're talking about a possible impact on traffic and checks under way. Not a confirmed device. Not an evacuation.
But nobody is ruling anything out yet.
The checks under way are the standard bomb-disposal procedure. Authorities run this exact process whenever something suspicious turns up, whether or not anything dangerous is actually there. Sometimes it takes minutes. Sometimes most of a day. Too early to say which this is.
There's no sign of a wider threat beyond the station itself. No other sites in Calais named. No flights, ports or roads nearby reported affected.
So three questions are still open. What triggered this. Whether anything dangerous is actually there. And how long passengers on both sides of the Channel are going to be stuck waiting to find out.
