Good morning everyone, and welcome to live text coverage of the Korean Grand Prix from Yeongam.

Vettel and Hamilton both on super-soft tyres, so the strategies are being mirrored here.

Stewards working hard to clear off the debris at turn 3 from that challenge.

'We're currently P5' Button is told. That should go up to fourth when Alguersuari pits.

Schumacher's race ended - Petrov may be luckier, he's going to change his front wing.

Well, Schumacher entirely innocent there - Petrov slams into the back of him and it was a bad misjudgment from the Russian. Alonso very lucky to get around the outside of that incident without getting caught.

SAFETY CAR! There's been a clash between Petrov and Schumacher at turn 3.

Vettel remains comfortably ahead of Hamilton after his stop.

Alguersuari is running in second place at the moment - Alonso, meaniwhile, has come out behind Massa in 11th!

Hamilton into the pits - Alonso follows him, but Vettel stays out! Long opening stint from the champion.

Looking at the replays it was a cheeky move from Button - Rosberg locked up having nipped ahead at the pitlane exit, and Button was opportunistic.

Massa and Webber both dived in to the pits - and it looks as if Button gets out ahead anyhow!

Well, this squabble on the track (Rosberg 11th, Button 12th) may be entertaining, but it's killing Button's strategy, and he's not gaining the time to get back ahead of the Ferraris.

Wow - Rosberg edges ahead in the pitlane - Button wrests it back immediately, but Rosberg catches him out on the straight!

Button hits the pits, as does Rosberg! Looking to undercut the Ferraris.

Rosberg joining that bunch as Massa struggles. But Alonso has a wobble of his own to ease the pressure.

Understeer for Massa as well - his engineers tell him to keep it clean, and they'll change it at the pit stop. Alonso crawling over the back of him.

The skies are certainly darkening - it's very cloudy and the track temperature is down to the mid-twenties.

Di Resta, down to 11th, hits the pits - he's using his last remaining set of super-soft tyres.

A new best time from Vettel - that helps him stretch his advantage to just above three seconds over Hamilton.

Top 10 - Vettel, Hamilton, Webber, Massa, Alonso, Button, Rosberg, Petrov, Schumacher, Alguersuari

Button steps out to have a look at passing Alonso but thinks better of it this time.