Rubens Barrichello has been disqualified from the Australian Grand Prix after jumping the red light at the end of the pitlane near the end of the race.
The Honda Racing driver finished the race in sixth position but was under investigation after television images showed the Brazilian had left the pitlane when the red light was still on during a safety car period.
Barrichello had already been hit with a 10-second stop-and-go for refuelling when it was not allowed.
Honda team boss Nick Fry confirmed after the race that Barrichello has been disqualified.
That moved Williams's Kazuki Nakajima up to sixth position, with Toro Rosso's Sebastien Bourdais in seventh and world champion Kimi Raikkonen scoring the final point despite not finishing the race.
Revised results and standings: Classified: Pos Driver Team 1. Hamilton McLaren-Mercedes (B) 2. Heidfeld BMW Sauber (B) 3. Rosberg Williams-Toyota (B) 4. Alonso Renault (B) 5. Kovalainen McLaren-Mercedes (B) 6. Nakajima Williams-Toyota (B) 7. Bourdais Toro Rosso-Ferrari (B) 8. Raikkonen Ferrari (B) Not classified/retirements: Driver Team On lap Kubica BMW Sauber (B) 50 Glock Toyota (B) 44 Sato Super Aguri-Honda (B) 33 Piquet Renault (B) 31 Massa Ferrari (B) 30 Coulthard Red Bull-Renault (B) 26 Trulli Toyota (B) 20 Sutil Force India-Ferrari (B) 9 Webber Red Bull-Renault (B) 1 Button Honda (B) 1 Davidson Super Aguri-Honda (B) 1 Vettel Toro Rosso-Ferrari (B) 1 Fisichella Force India-Ferrari (B) 1 Barrichello Honda (B) DQ World Championship standings, round 1: Drivers: Constructors: 1. Hamilton 10 1. McLaren-Mercedes 14 2. Heidfeld 8 2. Williams-Toyota 9 3. Rosberg 6 3. BMW Sauber 8 4. Alonso 5 4. Renault 5 5. Kovalainen 4 5. Toro Rosso-Ferrari 2 6. Nakajima 3 6. Ferrari 1 7. Bourdais 2 8. Raikkonen 1 All timing unofficial