Sebastian Vettel has recorded the fastest time in second practice ahead of this weekend's Belgian Grand Prix.
The world champion finished marginally quicker than Red Bull teammate Mark Webber, while Lotus Renault driver Romain Grosjean ended the session in third.
Grosjean's teammate Kimi Raikkonen was sixth fastest, in between Ferrari duo Felipe Massa and Fernando Alonso, who were fourth and seventh respectively.
Nico Rosberg and Lewis Hamilton were ninth and 12th for Mercedes, while Jenson Button was 15th for McLaren.
Second practice full standings:
1. Sebastian Vettel (Red Bull)
2. Mark Webber (Red Bull)
3. Romain Grosjean (Lotus)
4. Felipe Massa (Ferrari)
5. Jean-Eric Vergne (Toro Rosso)
6. Kimi Raikkonen (Lotus)
7. Fernando Alonso (Ferrari)
8. Sergio Perez (McLaren)
9. Nico Rosberg (Mercedes)
10. Paul di Resta (Force India)
11. Adrian Sutil (Force India)
12. Lewis Hamilton (Mercedes)
13. Nico Hulkenberg (Sauber)
14. Pastor Maldonado (Williams)
15. Jenson Button (McLaren
16. Daniel Ricciardo (Sauber)
17. Valtteri Bottas (Williams)
18. Esteban Gutierrez (Sauber)
19. Giedo van der Garde (Caterham)
20. Charles Pic (Caterham)
21. Jules Bianchi (Marussia)
22. Max Chilton (Marussia)
