Bob Wood wrote:
In oups.com,
Simon Lane typed:

asdf wrote:
BBC News 24 reporting a "code amber" - shutdown of entire
Underground

Now changed their story - only Vic, Northern, H&C have been shut

Interestingly R5 are describing this as a "code amber on three lines".

That's what 'code amber' means. All trains draw forward to platforms,
passengers are evacuated to ground level and services suspended.

One injured at Warren Street - said to be person who was carrying
rucksack whick exploded(!) - also confirmed reports of armed police
entering University College Hospital on Radio London (I expect related
to former point).