This article is more than 2 years old

This article is more than 2 years old

Footage has emerged on social media of a London Underground train travelling with the doors open and passengers on board.

The Jubilee line train was filmed on Saturday by Chris Nops as it travelled near Finchley Road station. He posted the footage to Instagram and the clip was also shared on Twitter by his friend Rory Brown.

Nops later told reporters: “They made an announcement saying they were aware the doors were open, so nobody pulled the emergency lever. I wasn’t concerned about my safety, however I was alarmed as there were children in the carriage.”

Nigel Holness, the network operations director for London Underground, said the safety of customers and staff was “our top priority”.

Staff were alerted on Saturday at around 9am that some of the doors on a train remained open for one stop between Finchley Road and West Hampstead, he said.

“The train was immediately taken out of service at West Hampstead and a full investigation is under way to understand how this occurred.”

While some joked on social media that it was an innovative approach to introducing air-conditioning to London’s notoriously hot underground trains, other users pointed out that the incident could have been much more serious had it occurred during rush hour, when the train would have been packed. No passengers were injured or hurt during the incident.

The trains operating on the line were built in 1996. In recent years, similar incidents have occurred on the Piccadilly line, in 2013 and 2016, and on the Victoria line in 2011.