Commuters have been stuck on busy platforms and crammed into Tube carriages for the last three days since the service was impacted on Sunday (October 19).
Transport for London (TfL) says that the severe delays are due to a signal failure being fixed at Stockwell station.
This problem has been ongoing, continuing onto the morning today (October 22).
It has advised people to “avoid the Northern line route where possible.”
“You will find it quicker to use alternative routes if you can,” TfL added.
This paper has seen that services have been spread out as far as nearly 16 minutes apart this morning.
In an alert sent out to customers, the customer information team for TfL acknowledged that ”the issue has been ongoing for a few days” with the message stating “teams are working to resolve the issue as soon as possible”.
It continued: “Disruption is expected to continue throughout the day and possibly until later in the week, due to the complexity of the failure.”
One person said on X: “The Northern line has been obliterated for three whole days by ‘signal failure’, we are not a serious country I’m afraid.”
Another person wrote: “How can there be MORE delays on the Northern line.”
