The Circle and District lines are facing severe delays on Friday morning due to a signal failure at Gloucester Road.
The Circle line was suspended in both directions earlier this morning, while the District line faced part-suspension.
There are also severe delays on the Victoria line due to a track fault at Brixton.
On the London Overground, there are minor delays on the Weaver line due a signal failure at Clapton.
Follow the latest updates below...
Rush-hour update
07:50 , Niva Yadav
As rush-hour looms, the Circle and District lines are still subject to severe delays due to an earlier points failure at Gloucester Road.
Meanwhile, there are severe delays on the Victoria line due to a track fault at Brixton.
The Northern line is subject to minor delays due to train cancellations, while the Weaver line on the London Overground is also facing minor delays because of a signal failure at Clapton.
There is a good service on all other lines.
Circle line up and running, but subject to delays
07:36 , Niva Yadav
The Circle line is back up and running, but subject to severe delays.
It follows a suspension of the line earlier this morning due to a points failure at Gloucester Road.
The District line is also subject to severe delays.
Minor delays on Northern line
07:16 , Niva Yadav
The Northern line is subject to minor delays due to train cancellations.
This is impacting the entire line.
Queueing traffic on A41 southbound
07:15 , Niva Yadav
Congestion is building on the A41 southbound this morning at A406 North Circular (Brent Cross Flyover).
This is due to construction in the area. Only one lane is currently open.
Severe delays on Victoria line
07:12 , Niva Yadav
Delays on the Victoria line have been upgraded to severe.
This is due to a track fault at Brixton.
Tickets are being accepted on London buses, the London Overground, the Great Northern, Thameslink, Greater Anglia, South Western, and Southeastern lines.
Minor delays on the Victoria line
06:58 , Niva Yadav
The Victoria line is subject to minor delays due to a track fault at Brixton.
The incident was first reported at the south London station earlier this week, but is still wreaking havoc across the Victoria line.
Good morning
06:55 , Niva Yadav
The Circle and District lines are both facing disruption this morning due to a signal failure at Gloucester Road.
The Circle line is suspended in both directions, while the District line is subject to severe delays.
Tickets are being accepted on London buses.
Stay with us as we bring you the latest updates as we head into rush hour.
