Dutch conductors of NS International have announced that they will go on strike on Wednesday on the route to Brussels.

There may be no trains from Amsterdam to the Belgian capital that day.

The railway staff already reported last week that they would take action, but at the time did not say when the strike would take place.

They now say that the work will stop during the night from Tuesday to Wednesday and that the action will last 24 hours.

It remains to be seen whether there will actually be any trains.

Belgian conductors also work on international trains and it is not known whether they will also stop working.

Drivers also did not participate.

But Henri Janssen, director of FNV Spoor, says he assumes "that Belgian colleagues show solidarity".

Normally the IC Brussels runs the route Amsterdam - Brussels twelve times a day and four times a day from The Hague HS to Brussels, and vice versa.

The conductors stop working out of dissatisfaction with the working conditions.

They say they are paid less than, for example, conductors who work on the Thalys.

A final offer by the NS, which, among other things, promised more wages, was voted down by the unions.

The unions have announced that if NS does not make a better offer, new actions will not be ruled out.

Adjustment: in an earlier version of this post we wrote that there would be no trains on Wednesday.

But Belgian conductors also work on the relevant route, of whom it is not yet known whether they will join the action.

So it remains to be seen whether trains will actually run.