I've just watched the Vettel moment from Kvyat's cockpit.

Kvyat goes into the back of him - twice. In two successive corners.

TWICE.

Ridiculous.

Alastair Horne: Sebastian Vettel’s radio message to the pits is the best thing to have happened in #F1, external all year.

Amit Mandalia: Vettel picking up front wing reminds me of when Schumacher did the same in Monaco 1999 (I believe) to make sure team got it back.

Josh Cobb: I'm calling it now: that's the best radio of the year #vettel, external

Hamilton with a superb move to go past Raikkonen, on the inside of the turn and Raikkonen has no choice but give him room. Lewis up to third.

"Get in there Lewis," says he race engineer on the radio.

Kvyat is trying to weave his way back up the field and goes past Ericsson - but goes off track in the process.

You'd expect the Russian to be punished for his calamity with Vettel, so he needs all the places he can get.

Tom Clarkson
BBC Radio 5 live commentator

This is a crucial phase of the race. Rosberg has set the fastest lap of the race. He is looking in his mirrors and is not worried about Valtteri Bottas or Kimi Raikkonen. He knows his main threat is his team-mate, Lewis Hamilton. He has got to get the gap up.

Image source, AP

So, if you thought Vettel was unhappy with Kvyat after their the Chinese GP, wait until the German realises who cost him his race today.

Gutierrez also took damage in that opening exchange and is last of the cars on the track.

Image source, Getty Images

Grant Kennett: That's the one redeeming feature of this circuit: the huge run down to Turn One ALWAYS leads to carnage!

Bibhash Dash: Always the sign of a crazy race when the first in-race live-text entry is "It's all happening".

Rahul D T: What a start! Looks like @LewisHamilton, external might be in a good position to contend for P1 in this race now!

ROS BOT RAI HAM MAS

Both of the Red Bulls are way down the order having pitted following their collision with Vettel.

The safety car is gone and we're racing again.

Hamilton is not messing around and leaves Massa in his wake to climb up to fourth.

Image source, Formula 1

So Vettel tried to take Ricciardo on the inside of Turn Two. As he brakes, Kvyat goes into the back of him, jarring him into the side of Ricciardo. He almost recovers but then someone gets him again.

We hear the radio. He is so angry.

He says the F word more than other.

"What the...!"

Jack Nicholls
Radio 5 live Formula 1 commentator

Lewis Hamilton didn't get a very good start, quite frankly, and looked to be caught up in the melee but somehow avoided it all and got himself into fifth.

Vettel scoops his front wing off the floor and sticks it into his cockpit. It pokes out like a forlorn sail.

Now he's on a scooter towards the garage - he's actually driving the scooter. At least he got to drive something.

So - out of the race are Vettel, Hulkenberg and Haryanto.

Hamilton climbed up to fifth amid the chaos. So much for that bad luck.

Jack Nicholls
Radio 5 live Formula 1 commentator

"There is carnage everywhere - a chaotic opening lap."

Sochi. Such a boring race...

So much chaos. Kvyat goes into the back of Vettel after a couple of turns and the German goes into the wall. Hulkenberg also finds himself off the track.

It's all happening. Vettel is off.