I've just had notice that the trains across the Netherlands will be on strike from 4am until 8am tomorrow. No trains will run except a Sprinter service between the Schiphol Airport and Amsterdam Centraal.
No other trains will run.
Passengers are advised to cancel or postpone travel tomorrow. After 8 am they will look at what they have and see what can run in the morning.
According to NS - the Dutch railways - "Please plan your trip shortly before departure".