Calais: Dozens of passengers were stranded for around five hours after a Eurotunnel Channel train stopped on Tuesday. The incident affected the 3.50pm Eurotunnel Le Shuttle service between Calais and Folkestone.

Service has returned to normal since Wednesday morning.

Operator Le Shuttle said a train’s alarms went off and service was halted to investigate the issue. The company later told the BBC the train did not actually break down, but the alarms were going off and an investigation was needed.

Footage posted on social media shows passengers being driven into an emergency service tunnel, after having to abandon their vehicle. They were then transferred to a replacement train and taken to the Folkestone terminal in the UK.

Passengers described a stressful and frightening scenario as they walked through part of the tunnel, some with their suitcases and pets.

“The service tunnel was terrifying. It was like a disaster movie. You walked into the abyss not knowing what was going on. We all had to stay under the sea in this big queue. Firefighters and rescuers were there,” Sarah Fellows, a passenger returning to Birmingham from a holiday in France told the PA news agency.

“There was a woman crying in the tunnel, another woman having a panic attack and traveling alone,” she said.

Michael Harrison from Cranbrook, Kent, one of the passengers on the evacuated train, told AFP he had “finally arrived in Folkestone six hours after boarding”.

“Operations like this take time, but they are for everyone’s safety and must be carried out with care,” he added, saying it had resulted in longer crossing times.