Lewis Hamilton continues his push, the Briton now 4.1 seconds behind Mercedes team-mate Nico Rosberg.

It looks like it could be all over for Daniel Ricciardo, who heads to the pits with front brake problems. He was running 12th.

Daniil Kvyat bails out, as he continues to struggle with those tyres. The Russia was sixth in the Toro Rosso. That'll move Kevin Magnussen up a place.

David Coulthard
BBC F1 co-commentator

"The racing spirit in Vettel is still very much alive with the overtake. It was a late lunge but a move which takes him up to sixth."

Nico Rosberg asks his team not to tell him the gap to Lewis Hamilton for a few laps. Is that wise? Because Hamilton is closing every lap. The gap now 4.7 seconds. Meanwhile, Sebastian Vettel passes Daniil Kvyat for sixth.

Hobbsy, external: In F1 there are drivers & there are racers. Nico, Lewis is a racer and he's coming for you!

Phil, external: Lewis already carving into Nico's lead at almost a second a lap, and Lewis better at tyre management.

Howard, external: Out of all the F1 teams, Williams' magical ability to throw away races due to the silliest things imaginable is quite special.

The gap between the two Mercedes continues to fall, Lewis Hamilton now 5.1 seconds behind. Still 35 laps to go. We'll have another round of pit stops, too.

Kimi Raikkonen pits from third and it's not going well. The front jack drops down before the mechanic gets the front tyre on. School boy error?

There's a little bit of cloud around, but still no signs of rain. Lewis Hamilton takes another two tenths of a second out of race leader Nico Rosberg. The gap down to 5.5 seconds.

Mercedes on Twitter, external: Will @nico_rosberg start to manage the gap? Has @LewisHamilton gone too hard too soon? This could get very intersting indeed...

Lewis Hamilton's rear tyres looks very blistered but the Briton continues to push, the gap to Nico Rosberg down to 5.7 seconds.

Lewis Hamilton continues to chase, the gap down to 5.8 seconds, with Kimi Raikkonen 6.2 seconds further back in third.

Here's how they stand:

1) Ros 2) Ham 3) Rai 4) Hul 5) Mas 6) Kvy 7) But 8) Vet 9) Mag 10) Alo 11) Ric 12) Bot 13) Gro 14) Sut 15) Gut 16) Per 17) Ver 18) Mal

Lewis Hamilton is on the march again, he's just taken 1.3 seconds out of race leader Nico Rosberg. That spin hasn't put him off.

Jeremy, external: Can the Brazilian fans put some tacks on the road so Massa can win?

Vicky Sanderson, external: Hamilton had a spin. Now who is finding the pressure too much to handle?!

Gareth Jones: That was a key moment in the championship.

So Nico Rosberg leads Lewis Hamilton by 7.4 seconds with Kimi Raikkonen third and Nico Hulkenberg fourth. The latter two have not yet stopped. Felipe Massa is fifth, Daniil Kvyat sixth and Jenson Button seventh. After the pit stop nightmare, Valtteri Bottas is down in 12th.

David Coulthard
BBC F1 co-commentator

"Hamilton has lost six seconds after the spin but it is not the end for Hamilton. He will be so frustrated though, it was a great recovery, in days gone by that would have a been a gravel trap and it would have been game over."

Lewis Hamilton is off! He's pushed too hard! The rear end of that Mercedes steps out, sending him spinning into the run-off at Turn Four. He recovers and pits but rejoins seven seconds behind Nico Rosberg. Still 43 laps to go, though.

James Allen
BBC Radio 5 live commentator

"Bottas has problem with his seatbelts in the pits. The crowd are cheering - it hands the initiative back to local hero Massa."

Lewis Hamilton is absolutely flying out there. The Briton clocks a 1:14.303 - that's way quicker than anything we've seen so far today. He's chosen to stay out for another lap. This is the kind of performance which will see him jump Nico Rosberg.

Meanwhile, Valtteri Bottas has a shocker of a stop as his team battle to adjust his seatbelt.

Felipe Massa pits, takes his five-second penalty and then switches tyres. He will likely drop behind team-mate Valtteri Bottas and Jenson Button once they've made their stop. Meanwhile, race leader Nico Rosberg is in, too.