Passengers on Eurostar trains are experiencing delays and cancellations due to a power supply issue on a rail line in northern France. At least nine services between London and Paris have been cancelled, and 15 delayed. The disruptions began at 08:30 local time and are expected to last throughout the day. Eurostar has advised passengers to postpone their journeys. Other routes, including Brussels-Paris and Amsterdam-Paris, are also affected. SNCF reported that major repairs are needed, predicting delays of one to five hours.