Power problems and a stuck train have interrupted rail traffic through the Channel Tunnel connecting the U.K. and continental Europe. Eurostar has suspended its services to and from London during the busy holiday period. The company blames overhead power supply issues and a failed train operated by LeShuttle. Channel Tunnel operator Eurotunnel said the power problem began overnight Monday and it affected both passenger and vehicle travel. Traffic was expected to resume gradually on Tuesday afternoon. The Gare du Nord station in Paris heaved with frustrated passengers trying to book plane or bus tickets.