Nine drivers given five-second penalties

Jenson Button, Rubens Barrichello, Nico Hulkenberg, Robert Kubica, Vitaly Petrov, Adrian Sutil, Sebastien Buemi, Pedro de la Rosa and Vitantonio Liuzzi have been penalised for "failing to stay above the minimum time set by the FIA ECU when the Safety Car was deployed."

The penalties mean Fernando Alonso is elevated from ninth to eighth, as he overtakes Buemi, and Nico Rosberg gets the final point from de la Rosa, 10th in the race.

The rest of the point-scoring positions remain unchanged.

The stewards also announced a 20-second penalty for Virgin's Timo Glock for ignoring blue flags.

Updated results and standings:

Classified:

Pos  Driver        Team
 1.  Vettel        Red Bull-Renault
 2.  Hamilton      McLaren-Mercedes
 3.  Button        McLaren-Mercedes
 4.  Barrichello   Williams-Cosworth
 5.  Kubica        Renault
 6.  Sutil         Force India-Mercedes
 7.  Kobayashi     Sauber-Ferrari
 8.  Alonso        Ferrari
 9.  Buemi         Toro Rosso-Ferrari
10.  Rosberg       Mercedes
11.  Massa         Ferrari
12.  De la Rosa    Sauber-Ferrari
13.  Alguersuari   Toro Rosso-Ferrari
14.  Petrov        Renault
15.  Schumacher    Mercedes
16.  Liuzzi        Force India-Mercedes
17.  Di Grassi     Virgin-Cosworth
18.  Chandhok      HRT-Cosworth
19.  Glock         Virgin-Cosworth
20.  Senna         HRT-Cosworth
21.  Trulli        Lotus-Cosworth

World Championship standings, round 9:

Drivers:                    Constructors:
 1.  Hamilton     127        1.  McLaren-Mercedes          248
 2.  Button       121        2.  Red Bull-Renault          218
 3.  Vettel       115        3.  Ferrari                   165
 4.  Webber       103        4.  Mercedes                  109
 5.  Alonso        98        5.  Renault                    89
 6.  Kubica        83        6.  Force India-Mercedes       43
 7.  Rosberg       75        7.  Williams-Cosworth          20
 8.  Massa         67        8.  Toro Rosso-Ferrari         10
 9.  Schumacher    34        9.  Sauber-Ferrari              7
10.  Sutil         31
11.  Barrichello   19
12.  Liuzzi        12
13.  Buemi          9
14.  Kobayashi      7
15.  Petrov         6
16.  Alguersuari    3
17.  Hulkenberg     1