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

Rosberg opts for the pits here - without the advantage of the track position to hold on to.

Webber has bridged the gap on Hamilton here - impressive for a man on prime tyres when the duo ahead are on the super-softs.

Rosberg locks up going into turn three! That lets Massa past - and Alonso follows!

Hamilton half a second down on Vettel - Webber a couple of seconds behind that battle, and Button has eased off to the same sort of margin behind Webber.

As if to indicate Rosberg's lack of pace, Jaime Alguersuari is closing up on the battle for fifth at the rate of a quarter of a second per lap - he'll be in the bunch shortly...

Rosberg really frustrating the Ferrari drivers here - he's evidently got the slower car, but he's able to hold off the attacking duo.

Kobayashi has to go into the pits to repair the front wing - that ends that battle for now.

Hamilton has started to match Vettel's pace here - he's still at arm's distance from the Red Bull however.

The battle between Kobayashi and Senna continues - Senna takes 14th from him at the first turn, Kobayashi reclaims it with DRS on the straight. But Senna wrests it back with KERS later in the lap.

Rosberg is having to do some defensive work here - he's holding fith place, but the Ferrari of Massa is hot on his heels.

The Schumacher-Petrov incident will be investigated after the race, race control announces.

Best lap from Vettel - a 1:42.5 - this is turning into a champion's drive.

Kobayashi may have lost a bit of his front wing there - he's just clipped Senna as he tries to battle through the midfield.

Decision: Drive-through penalty for Maldonado - he was on the wrong side of this bollard, apparently.

Bad news for Maldonado - he's been spotted hitting a bollard in the pit lane and a penalty could follow.

Webber holds off the McLaren and Button has to back away from the challenge.

Good start from Vettel, but behind him Button all over the back of Webber in the race for third.

Safety car coming in and we'll resume racing at the end of this lap...

Alguersuari dived into the pits, so the running order has become: Vettel, Hamilton, Webber, Button, Rosberg, Massa, Alonso, Alguersuari, Di Resta, Sutil, Maldonado, Buemi, Perez, Kobayashi, Barrichello, Senna, Kovalainen, Trulli

The prime tyres generally take a little bit more work to keep at race temperature - the drivers on super-softs may have an advantage at the restart. That could boost Button.

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