Mercedes driver Nico Rosberg has set the fastest time of second practice ahead of this Sunday's Bahrain Grand Prix.
The German, who won last weekend's Chinese Grand Prix for his first triumph in the sport, posted a time of 1:32.816 to finish ahead of the Red Bull duo of Mark Webber and Sebastian Vettel.
Fastest in the first practice session, Lewis Hamilton came in at fourth with McLaren teammate Jenson Button in sixth.
Rosberg's fellow German and Mercedes partner Michael Schumacher completed the top six by coming fifth.
Force India took no part in the session because they wanted to return to their hotel during the daytime after they were caught up in a petrol bomb incident earlier this week.