The British transport body Transport for London has apologised, after a London Underground train was seen travelling between stations with its doors open.
Commuter Chris Nops was travelling on the train on Saturday afternoon with his friend Rory Brown, and filmed the incident as it travelled in the north of the city.
"They made an announcement saying they were aware the doors were open, so nobody pulled the emergency lever," he said.
"I wasn't concerned about my safety, however I was alarmed as there were children in the carriage."
Mr Nops said the wind rushing in from the open doors was not strong enough to push him physically - but he was forced to hold on to his friend's puppy they were travelling with.
"I was worried about him," he said.
The pair, who are in their 20s and work in advertising, both uploaded the clip and were alarmed by their experience.
Rory Brown jokingly wrote: "@TFL new way to keep tubes cool in the summer - leaving the doors open".
He continued to add: "pretty bloody sketchy! #whatishealthandsafety?"
@TfL new way to keep tubes cool in the summer - leaving the doors open ?? pretty bloody sketchy! #whatishealthandsafety? pic.twitter.com/ntQC0hNgL0
— Rory Brown (@roryfergusbrown) September 1, 2018
He commented that "at least 10 different doors along one side" remained open despite the train moving.
Mr Nops wrote on Instagram: "@transportforlondon took the Jubilee line Saturday with @roryfergusbrown and the driver thought it was ok to leave the doors open...better than the air con but not particularly safe!?!"
A spokesperson for TFL replied to Mr Brown's post on Sunday, saying: "Hi Rory, we were made aware of this yesterday and the train was taken out of service and currently under investigation so thanks for letting us know.
"Sorry for any inconvenience caused and hope your journey was okay. Thanks - Dan".
Hi Rory, we were made aware of this yesterday and the train was taken out of service and currently under investigation so thanks for letting us know. Sorry for any inconvenience caused and hope your journey was okay. Thanks - Dan
— Transport for London (@TfL) September 2, 2018
According to Transport for London, the average speed of their tube trains is 33kph - although it is not known how fast the train in the video was traveling.
