Lewis Hamilton secures pole position
Bottas second, Verstappen third
Ferrari error sees Leclerc out in Q1
OUT in Q2: Hulkenberg, Norris, Grosjean, Raikkonen, Giovinazzi
OUT in Q1: Leclerc, Perez, Stroll, Russell, Kubica
Get involved: is Mercedes' dominance ruining F1? #bbcf1
Valtteri Bottas, who joins team-mate Lewis Hamilton on the front row: "I'm disappointed not to have got pole.
"Anything can happen in the race - there's no point giving up on Saturday.
"It would've been nice to have been on pole but I won't give up."
Pole sitter Lewis Hamilton: "Big thank you to the crowd, this is the race every driver dreams of when you are a child, you put absolutely everything you have got into it.
"All the guys in the factory have put in everything. Valtteri has been quick all weekend. To get this, it means so much, I had to dig deeper than ever. The lap was beautiful, I feel amazing and super grateful.
"We have a great package and all drivers, whether their car is fast or slow, you take it to its limit, it's like wrestling a bull. The lap was hard, I had a moment at Rascasse but just managed to pull it off."
Image source, PA"Yesss," is what you get from Lewis Hamilton over the team radio. He unleashes his inner Spiderman by springing on to a fence to celebrate with some of his fans.
Image source, .Incredible. Just when he needs to find something special, Lewis Hamilton does just that. He is only 0.086 faster than Bottas, but that's enough.
Image source, Getty ImagesAnother Vettel error.
Hamilton purple in first sector.
This will be the 10th pole position of Valtteri Bottas' Formula 1 career, if he stays top.
Last year's Monaco winner Daniel Ricciardo gets himself up to sixth.
We're heading for an all-Mercedes front row at the moment. Max Verstappen has to go at least two tenths faster, Sebastian Vettel needs to find almost half a second.
Image source, Getty ImagesLeclerc out in Q1 reaction #bbcf1
The Spare Steward: Seeing Charles Leclerc take photos and sign autographs with fans after what just happened says volumes about what kind of man he is.
Jeff Siddle: Why are Ferrari trying to save tyres - it is qualifying that you need the tyres - last year Riccardo was 160bhp down but still won the race
Kuntal Majumdar: The strategists at Ferrari are a complete joke at this point. They need to be replaced if Ferrari wants to salvage their season. Absolute rubbish.
One run still to come.
Hamilton now up to second, still 0.231 behind Bottas who is closing in on his fourth successive pole position.
Hamilton has to back out of his first lap, lap ruined.
Verstappen nearly four tenths off Bottas. That is some lap from the Finn.
Sebastian Vettel seven tenths off Valtteri Bottas' time, which is a new track record.
Bottas with a 1:10.252. That's our early marker.
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Right, 10 minutes, 10 men, one will be on pole.
Jennie Gow
BBC Radio 5 live pit-lane reporter
Leclerc was angry, upset when I just spoke to him. I think the hardest thing for a driver to accept is when they are not in control of a situation. He was sat there watching the clock tick down, watching his name drop lower and lower.
This is his home race, the people here are here to watch their driver try and get pole and try and win the race and they will be heartbroken as well because this was supposed to be the fairytale.
This is a hard time for Ferrari and a lot of questions will be asked.