The Dutch train operator warned of delays across the Netherlands as train service to and from Amsterdam, the capital, was canceled for a second day on Monday.
ProRail, the government agency responsible for maintaining the railways, cited problems with the system used to monitor and control trains, which first surfaced on Sunday afternoon. All service was canceled, and ProRail told customers that it had restarted the system and hoped to restore service by the end of the day.
But by late Sunday night, the issue, referred to as an IT problem preventing the monitoring of trains, had popped up again, and service was canceled for a second day.
“No trains are running to and from Amsterdam this morning either,” ProRail said early Monday morning. “The advice to these travelers is to arrange alternative transport for the journey to school or work or, for example, to work at home.”
Service to Schiphol airport, one of Europe’s busiest, was canceled, and a Harry Styles concert on Sunday in Amsterdam was delayed because of the malfunctions. Nederlandse Spoorwegen, the main passenger rail operator, urged travelers not to come to Amsterdam on Monday and to work from home.