Commuters gather outside Golders Green Tube station last week after its closure. (Image: Archant)
Golders Green and Hampstead Tube stations have been forced to shut due to trespassers on the tracks.
The Northern Line has been suspended both ways following reports of trespassers.
Police are understood to be on the scene and there is currently no service between Camden Town and Edgware, with delays on the rest of the line.
Commuters have been advised to use bus services.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here