The entire Victoria line has been suspended, leaving commuters stranded underground in Tube trains.
The Victoria line has been suspended due to a signal failure at Green Park, Transport for London said.
There are also severe delays on the Bakerloo line due to an earlier fire alert.
One commuter in a Victoria line Tube carriage said: ‘Stuck in a tunnel on the Victoria line and whenever the driver speaks we can’t hear him.
‘Tannoy not working. It’s very hot, when will we move?’
TfL apologised and said: ‘Currently, we are operating with severe delays while we fix a signal failure at Green Park. I hope you are on the move soon.’
A second Londoner posted that they had been stuck in a tunnel between two stations for 30 minutes.
This is a breaking news story and will be updated.
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