Postpublished at 13:43 British Summer Time 29 April 2017
"Unbelievable," says Fernando Alonso after failing to get off the bottom of the order in Q2.
Kimi Raikkonen squeezed in an improve to move into P2, four tenths down on Valtteir Bottas' time.
Vettel on pole in first Ferrari lock-out for nine years
Bottas 3rd, Hamilton 4th
Palmer crashes out in Q1
Sunday's race coverage from 11:30 BST
Gary Rose
"Unbelievable," says Fernando Alonso after failing to get off the bottom of the order in Q2.
Kimi Raikkonen squeezed in an improve to move into P2, four tenths down on Valtteir Bottas' time.
11) Sainz 12) Stroll 13) Kvyat 14) Magnussen 15) Alonso
Valtteri Bottas finishes quickest in the second part of qualifying for the Russian Grand Prix.
Daniel Ricciardo fails to improve on his final Q2 lap. He is eighth, half a second above the cutout. He couldn't go out, could he...?
Sergio Perez improves and is up to ninth as the timer hits zero.
Valtteri Bottas and Lewis Hamilton look to be done and dusted for Q2, they are in the pits but the Ferraris are out on the track, both with ultrasofts on their cars.
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Five minutes to go in Q2 and Daniil Kvyat, Carlos Sainz, Kevin Magnussen, Fernando Alonso and Sergio Perez are the five in danger of being eliminated.
Perez has not done a time at all yet so he is going for the all or nothing one lap shot at getting through to Q3.
Andrew Benson
Chief F1 writer
Boom. Q2 1st runs. Mercedes turn it up. Bottas suddenly 0.7secs quicker than Vettel, Hamilton halfway in between.
And Lewis Hamilton crosses the line half a second slower than his Mercedes team-mate. He does 1:33.760, faster than the Ferraris, but crucially it is Valtteri Bottas that is looking on it so far this weekend.
Allan McNish
BBC Radio 5 live Formula 1 analyst
Hamilton is currently quickest overall in the first sector but Bottas is still quickest in the crucial sectors.
And Valtteri Bottas promptly does the quickest time we have seen all weekend with 1:33.264.
"Wham!" says Jack Nicholls on BBC Radio 5 live sports extra.
Can't argue with that.
Kimi Raikkonen dips below that predicted cut off point with 1:34.053 to go top of the order.
That's just a touch slower than the quickest lap we have seen all weekend.
Tom Clarkson
BBC Radio 5 live commentator
To get from Q1 to Q2 you will probably need a jump of one second and a time in the low 1.35 will be needed.
Felipe Massa does a 1:35.677 to lead a Williams one-two ahead of Lance Stroll (+.686) in the early stages of Q2.
"Tyres feel their best right now," reports Lewis Hamilton. He's on his first lap on the ultrasofts.
Everyone is out on the circuit now. Ferrari are splitting things up as Kimi Raikkonen takes to the track on ultrasofts, Sebastian Vettel on supersofts.
#bbcf1
Shaheed Williams: I don't think J Palmer should be in F1, too many mistakes. Reminds me of Maldonado
Nikhil Jitendran: Ferrari are most comparable to the "Greatest animal that's ever lived" this season - the Honey Badger! Competitive and sprightly
Yellow flags are still waving as they finish off clearing away Jolyon Palmer's abandoned Renault.
The second part of qualifying is under way.