Alonso out as engine blows, former F1 driver Takuma Sato wins
Scott Dixon and Jay Howard survive huge crash as Dixon's car launched upwards and into wall
Vettel wins in Monaco, Raikkonen 2nd, Ricciardo 3rd, Hamilton 7th
Vettel takes lead from Raikkonen after pit stops - suspected team orders
Indy 500 video highlights to come later
There's smoke pouring out of the back of Nico Hulkenberg. The Renault engine has gone and he takes an age to stop, possibly spilling oil all the way down from the exit of the Swimming Pool complex to Portier.
Image source, Formula 1/TwitterJenson Button said pre-race he would give Natalie Pinkham a tenner for every overtake in the race. Hamilton managed one early doors on Stoffel Vandoorne but nothing since. Fourteen laps in and he's 11th.
Strange... a Red Bull engineer just asked Verstappen, "How is our pace relative to Bottas Max?"
"Surely you can see, no?" he replies...
Well said Max...
Andrew Benson
Chief F1 writer in Monaco
Five-second penalty for Wehrlein for unsafe release. Frankly, a silly verdict. Unsafe release got him ahead of Button; they should swap them.
Allan McNish
BBC Radio 5 live Formula 1 analyst
Image source, .The last time Ferrari won this grand prix was in 2001 - and one of the guys racing for podium positions, Max Verstappen was only two years old.
Everyone is on ultra-softs apart from Jenson Button, who pitted early to swap to super-softs. He's lapping two tenths slower than Pascal Wehrlein at the moment but Wehrlein has just picked up a five second time penalty for unsafe release.
Image source, Getty ImagesKimi Raikkonen had been lapping around two tenths of a second quicker than Sebastian Vettel but the latter's recent laps have been marginally quicker than the Finn's.
Raikkonen continutes to lead the race with the gap now 2.2s.
Image source, Getty ImagesFernando Alonso wishes Jenson Button good luck for the Monaco Grand Prix.
Jenson Button, who is 20th, is desperate to get pst Pascal Wherlein.
"Bit of a pain having Wehrlein in front but can't do much about it," he says.
"I think he is starting to get degradation already."
Kevin Magnussen has gained the most places so are climbing up to 11th from ninth.
No-made a gain further up the grid although the two Red Bulls did brush each other heading into the first corner on the first lap. A battle to watch there.
Allan McNish
BBC Radio 5 live Formula 1 analyst
This is only the seventh lap of a 78 lap grand prix and we have a lot more racing to go but it is going to be a very difficult one for Lewis Hamilton to get in the mix.
There is only realistically two places on this circuit you can overtake and you need a lot of help from the guy in front of you.
Image source, Getty ImagesLewis Hamilton is closing in on Daniil Kvyat. He's two tenths quicker than the Russian on that last lap and the gap between them is down to 1.4s. That radio message suggests Hamilton will be going deep into this race before making his one stop late on.
"I am starting to get close to these guys" says Hamilton as he closes the gap on Daniil Kyvat...
"Copy that Lewis - our race comes later..." is the reply...
Jenson Button and Pascal Wehrlein come very close to colliding in the pitlane. Button questions whether that was an unsafe release for Wehrlein and race stewards confirm the incident is being investigated.
Kimi Raikkonen is really hammering it early doors. His latest lap is half a second quicker than Sebastian Vettel's and he is 1.5s clear of his Ferrari team-mate.
Allan McNish
BBC Radio 5 live Formula 1 analyst
Sebastian Vettel is already leading the world championship and at the moment, in 12th place, Lewis Hamilton will not score any points. If it stays as it is, Vettel will extend his lead to the equivalent of a whole race.
Mercedes need to think about how they get out of this train position he has gotten into.
Image source, Getty ImagesHere's that brilliant radio message exchange between Fernando Alonso and Jenson Button just before lights out.
Alonso: "I am sure you don't want to hear my voice before you start but I just want to say good luck and I will be watching you here" says Alonso live from Indianapolis...
Button: "Aww thanks mate! I am going to pee in your seat!" says Jenson... charming.
Alonso: "Please don't do that!"
Jenson Button and Pascal Wehlrein make early stops.
Meanwhile, there's no change at the front as Kimi Raikkonen leads Sebastian Vettel by 1.1 seconds. Valtteri Bottas is 2.1 seconds behind in third.
Lewis Hamilton is not messing about. He's gained a place already with a pass on Stoffel Vandoorne.
Image source, Getty ImagesLIGHTS OUT!
Kimi Raikkonen holds the lead into the first corner with Sebastian Vettel behind him. Perfect start by Ferrari.
Image source, Formula1/Twitter