Eurostar trains carrying passengers in the undersea Channel Tunnel between Britain and France will remain suspended on Sunday over concerns of freezing weather, the rail operator has said.

A total of five high-speed passenger trains broke down on Friday and Saturday as they entered the warmer tunnel from cold air outside, with condensation causing electricity failures. More than 2,000 passengers were trapped inside the tunnel for many hours.

A rescue locomotive and a shuttle train were used to move passengers out of the tunnel, following which Eurostar cancelled all trains until Monday to investigate what had happened.

"We are committed to restoring our services as soon as possible but our key priority is the safety and comfort of our customers," Eurostar said.

LONDON, December 20 (RIA Novosti)