The Eurostar train traffic between the United Kingdom and France will remain suspended on Monday, we learn from the company.
The traffic has been suspended since Saturday due to power outages that have detained five trains in the night from Friday to Saturday, with more than 2,000 passengers in the tunnel.
Trains tests were circulated on Sunday to try to find an explanation to specific technical problems.
"The traffic will remain suspended tomorrow (Monday) all day," he told Reuters by telephone a spokesman for the company in London.
"Tests conducted on Sunday have allowed a great advance in the understanding of the technical problem. However, new tests should take place on Monday," she said.
Eurostar said that such a phenomenon had not occurred for fifteen years and its CEO, Richard Brown, has apologized to passengers.
MEP Dominique Baudis, who was one of the passengers trapped in the night from Friday to Saturday, has called for an investigation to determine the causes of the blackout. In France Info microphone, he accused Eurostar of "non-assistance to persons in danger".
Last year, the Channel Tunnel, opened in 1994, was closed two days after a fire on a freight train.
Some 40,000 people travel daily on the Eurostar line between the UK and mainland Europe.