Eurostar on Tuesday (December 30) suspended its cross-Channel train services to and from London following a power supply problem in the tunnel that links Britain and France, a company spokesperson said, disrupting peak winter holiday rail travel.

The spokesperson did not know when services would resume and declined to say how many passengers were affected. On its website, the high-speed train operator warned passengers to expect severe delays.

The disruption affects one of Europe’s busiest international rail corridors at the height of the winter travel season.

Eurostar trains out of London serve Paris, Brussels, Amsterdam and Disneyland Paris.

Production: Antony Paone, Lauren Bacquie, Elissa Darwish/Reuters