Right, that's it from this bonkers, bonkers, bonkers day of cycling.

I might wake up tomorrow and find that it was all a dream.

The upshot is that Chris Froome is still the yellow jersey holder.

Also, we've found out he can run. We know he can cycle. How's your swimming Froomey? I sense a triathlon career calling.

Keep across this story for a full take on the day's events - and also keep an eye on the BBC Radio 5 live twitter account for tonight's BeSpoke podcast for more reaction.

i have no idea what they'll talk about.

Join us for stage 13 tomorrow - it's time trial day. As if we needed more excitement.

BBC Radio 5 Live

The BBC Radio 5 live commentary team can't believe what they see when the chaos unfolds on stage 12.

You can hear their excellent and dumbfounded description of how it went down by clicking this link.

And here are the thoughts of AG2R rider Jan Bakelants...

Tour de France veteran Fabian Cancellara, nicknamed Spartacus, is not impressed.

The really big news lost in all this, is that the man considered to be Chris Froome's man rival is drifting out of the picture.

Nairo Quintana is 1min 1sec behind the yellow jersey leader.

The Colombian was left for dead by Froome's break, before he crashed with Porte and Mollema.

Froome would have extended his lead by more had the crash not happened - and Mollema and Porte would have made big in-roads too.

Chris Froome's antics running up Mont Ventoux seems to have exposed many cycling enthusiasts as Kate Bush fans...

Mollema finished 19 seconds ahead of Yates - so Froome gets the same time and extends his lead over Yates by a further 19 seconds - the gap is 47secs.

Froome would have been 53secs behind Yates if the result was not changed.

It seems that Froome, Porte and Mollema have been given the same finishing time. So that means Froome has extended his lead over Adam Yates and Mollema has closed in on the Briton in second place.

And now they've tweeted it...

The classification on the Tour de France website has been updated to show Chris Froome as the yellow jersey holder.

Image source, Le Tour

Looking at Ned Boulting's tweet, Chris Froome seems to have extended his lead in the yellow jersey to 47 seconds over Adam Yates.

Image source, Getty Images

We should have some answers imminently...

Kenton: Can't believe what I'm reading...sounds like a badly organised club ride. Spectators need to be controlled. 

Glynn: This is our generation's JFK moment: Where were you when @CHrisFroome, external ran up Mont Ventoux?

Care: What a complete farce at TDF. Hope the jury decides in favour of @chrisfroome, external

Sam: I have a feeling the result will stand. Ultimately only 3 riders were effected so no "major" impact.

All pretty simple, right?

...you haven't missed much.

Wait. You've missed loads.

Here's a recap:

On the climb to the finish of stage 12, with Thomas de Gendt having already won the stage, Chris Froome, Richie Porte and Bauke Mollema broke away and left Nairo Quintana for dead.

It was a race between the three yellow jersey contenders, until Porte went into the back of a motorbike that had been stopped by spectators.

All three riders crashed. Porte and Mollema were able to get back on their bikes and finish.

Froome had a technical problem and started jogging to the finish (I repeat, he started jogging).

He was eventually given a new bike, but couldn't get his shoes into the pedals.

Another bike came, but he finished way down on his rivals and, if the result stands, will relinquish the yellow jersey to Adam Yates.

However, Froome's tweet below suggests Tour bosses have got involved.