The Intercity Direct trains which replaced the ill-fated Fyra on the high-speed line between Amsterdam and Breda were taken out of service on Tuesday.
According to the NS, which is responsible for the trains, there are problems with the flow of electricity to the locomotives.
All 18 locomotives have been taken out of service and are being checked by the Canadian manufacturer Bombardier.
It is not known how long the investigation will take.
In the meantime, passengers will have to travel in the slower trains, adding half an hour to their journey. The Benelux train between Breda and Antwerp and Brussels is still running, the NRC reports.
Thank you for donating to DutchNews.nl
The DutchNews.nl team would like to thank all the generous readers who have made a donation in recent weeks. Your financial support has helped us to expand our coverage of the coronavirus crisis into the evenings and weekends and make sure you are kept up to date with the latest developments.
DutchNews.nl has been free for 14 years, but without the financial backing of our readers, we would not be able to provide you with fair and accurate news and features about all things Dutch. Your contributions make this possible.