Hello and welcome back to our live coverage of the Malaysian Grand Prix.

Thanks for joining us today. Plenty more action to come tomorrow. Make sure you join us again then.

So, Webber makes it two sessions out of two, clocking a time of 1:36.876 for Red Bull. He's followed by McLaren duo Button and Hamilton, with the rest of the top 10 looking like this: Schumacher, Massa, Rosberg, Heidfeld, Alonso and Alguersuari.

No more late improvements at the top and that concludes the second practice session!

The day ends in disappointment for D'Ambrosio failing to make it out.

Seventeen has become 20 cars out on track as we near the end of the first day of action at Sepang.

Vettel is currently fourth as bits of rubber build up at the side of the track.

Indeed, it's a crowded track at the moment with 17 cars out there.

Both McLarens are out there, attempting to better their times as the session draws to a close.

D'Ambrosio might not make it out at all this session. He's still in the Virgin garage.

Fifteen minutes left and still Webber leads, following on from his dominant performance in the first practice session this morning.

Massa is out on the softs at the moment with Ferrari team-mate Alonso on hards.

So, with 20 minutes remaining this session, it's Webber who leads from Button, Hamilton and Vettel.

Hamilton, on his soft tyres, storms into third with a 1:37.010.

There's a bit of a lull in the session at the moment with just six drivers out on track.

Belgian D'Ambrosio still hasn't set a time - he's the only man yet to do so.

Schumacher comes out on track but it's a brief appearance as he encounters problems at Turn 6.

Karthikeyan's car has smoke pouring out from its back end once again, but he nevertheless manages to complete the lap and go 18th.

As Liuzzi heads back to the pits, Karthikeyan pulls out on track with soft tyres on his HRT.

The track is clear once again and Button flies through to post a 1:36.881 - but it's not enough to beat Webber for the moment.

Yellow flags come out as Maldonado spins onto the grass before gently bumping the front end of his Williams into the barriers. The driver climbs out and his car begins its journey back to the pitlane.