Elizabeth Line commuters have battled another day of delays after a passenger fell ill and "collapsed" and a "broken intercom" meant the driver could not be alerted, according to reports.
There were severe delays between Whitechapel and Shenfield and minor delays between Paddington and Whitechapel on Wednesday morning due to the ill person, Transport for London said on its website.
One passenger wrote on X, formerly Twitter: "Stuck on the Elizabeth line with a passenger collapsed, the intercoms to speak the driver are not working, this is disgraceful!"
At 10am it appeared the delays were continuing. There was a good service on the rest of the line.
London Underground, London Buses and Greater Anglia have accepted tickets via any reasonable route.
Commuters on Wednesday said the Elizabeth Line was "a mess" and a "shocking service". One person said they waited on a train at Forest Gate amid 20-minute delays into central London.
The Standard has approached TfL for comment.
It comes just weeks after London Mayor Sadiq Khan apologised for high levels of disruption on the Elizabeth line, as he pledged to work with TfL to improve the service.
The mayor said it was "not good enough" that commuters were not receiving "a first class service".
The Elizabeth line struggled with historically low punctuality over the summer, when one in six of its services was delayed or cancelled. More recently, services suffered six separate issues in just over 24 hours in October.
Conservative mayoral candidate Susan Hall said "constant disruptions" on the line showed that Mr Khan is "failing to keep London moving".
Responding to criticism about the line’s reliability, the Labour mayor told the Standard: “It was raised at the last TfL board meeting, because the commissioner [Andy Lord] himself understands that the level of service on the Elizabeth line hasn’t been as good as we hoped.
"Of course it’s been a source of pride to us, how popular the line is. But it’s not good enough, the concerns that have been raised.
"We are speaking to Network Rail - a lot of these issues are to do with [the part of the line] west as you go past Paddington, and east as you go past Liverpool Street, which aren’t TfL lines. We are working more closely with Network Rail.
"I fully understand the concerns commuters have. The commissioner has apologised for the service received by commuters - I echo that apology."
Network Rail said in October it has "brought in industry experts from the UK and the continent, as well as the manufacturers of some of our components, to understand precisely why some of our infrastructure isn’t performing how it should, and this forms the basis of our improvement plans".
