Postpublished at 14:23 British Summer Time 28 May 2017
Max Verstappen pits from fifth while Jenson Button has come to stop on an escape road. His return to F1 has sadly ended in retirement. Did he tangle with the Sauber?
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
Gary Rose and Libby Dawes
Max Verstappen pits from fifth while Jenson Button has come to stop on an escape road. His return to F1 has sadly ended in retirement. Did he tangle with the Sauber?
Allan McNish
BBC Radio 5 live Formula 1 analyst
They have to be very careful how they put this car back onto it's wheels. It is around 700 kilos of weight there.
The safety car is deployed because there's been a crash. It looks like Pascal Wehrlein's Sauber which has somehow ended up on its side in the barrier.
Nico Rosberg is enjoying the race.
Probably just delighted he's not involved in it.
Allan McNish
BBC Radio 5 live Formula 1 analyst
It happens quite a lot here. There are a few stones but it's not as if it's breaking up really badly.
The track is indeed breaking up at the exit of Turn One. Right on the racing line it is starting to look like a neglected car park.
"Track breaking up on the exit of turn one" warns Button's race engineers...
Hamilton's engineer clearly finding positives from today's race...
"Your pace is very good Lewis - you are the fastest man out there at the moment"
Comforting words while the Brit sits in seventh....
Stoffel Vandoorne could score McLaren's first point of the season. He's currently 10th although he needs to keep an eye on Sergio Perez, who is 1.4 seconds behind him.
Sebastian Vettel is now almost 12 seconds clear of Kimi Rakkonen.
I don't think anyone would turn down a sting in a tail to come in this race. In a season where pretty much every race has delivered, this has been a bit of a snoozefest.
Mercedes to Valtteri Bottas: "Watch out for a possible raised manhole cover coming out of turn 1. There have been some punctures"
There's a hazard on the circuit. Valtteri Bottas is told of a possible raised manhole cover that has caused a couple of punctures. Safety car?
Sixth is on for Lewis Hamilton. He goes sixth tenths quicker than Carlos Sainz and he's now 6.7 seconds behind the Toro Rosso.
Valtteri Bottas is getting caught up in traffic. Not what he wants with Max Verstappen lurking behind.
Jennie Gow
BBC Radio 5 live pit-lane reporter
It would be a massive psychological win for Sebastian Vettel today.
Him and Hamilton banter and say they are quite good mates off the track but I wonder, as the battle heats up, just how that relationship will change...
Max Verstappen has Valtteri Bottas in his sights. The Finn, in fourth, is 0.9s ahead of the Red Bull.
Allan McNish
BBC Radio 5 live Formula 1 analyst
From where he started in 13th, I would think that would be a pretty impressive result for Lewis Hamilton - seventh place - he would pick up six points.
The gap would still be one whole grand prix victory behind the Sebastian Vettel in the championship battle.
If things stay the same to chequered flag Sebastian Vettel will lead Lewis Hamilton by 25 points in the drivers' championship.
Vettel is just going further and further into the distance with his lead over Kimi Raikkonen now almost 10 seconds.