Eurostar services to Brussels will not resume until Monday at the earliest following the local commuter train crash this week that killed 18 people.
The operator is running a shuttle bus from Lille to Brussels but is advising customers whose travel is non-essential to either rebook or claim a refund.
The crash occurred about 10 miles south of Brussels on a stretch of track where high-speed lines intersect with commuter services.
Although Eurostar trains were not involved in the crash, the train operator has been forced to halt its Belgian services. An inquiry is being launched into the crash and already human error is believed to be a contributing factor.