The ace humourists over at Us vs th3m have seemingly secured a pretty serious scoop as to why the Victoria Line, at time of writing, is currently suspended.

“The civil engineering team has poured fast-setting concrete into the Victoria Line signalling equipment room and shut everything down.”

The official Twitter feed for the Victoria line is currently fending off questions about the veracity of the pictures - apparently they can't confirm it at the moment.

@Smokesniper Hi, I dont have that information at present.
— TfL Victoria line (@victorialine) January 23, 2014

Seems like a disastrous turn of events, let's see how this one plays out.

Update:

Metro reporter claims TFL have confirmed the issue with cement:

TfL have confirmed to me problems on the @victorialine are due to an 'issue with concrete'. Reportedly quick-drying cement in signal room
— Daniel Binns (@Reporter_Dan) January 23, 2014

Thankfully the beleaguered social media manager is getting some empathy on Twitter too.

Does anyone know where TFL run their social media from? I think the person currently looking after @victorialine may need a cup of tea.
— Tony Kennick (@thegreatgonzo) January 23, 2014