Britain's Lewis Hamilton won a wet Japanese Formula One Grand Prix to complete a hat-trick of victories and extend his championship lead over Mercedes team mate Nico Rosberg to 10 points with four races remaining.

Rosberg finished second in a race that needed two starts behind the safety car and ended before the full distance due to a crash that saw Marussia's French driver Jules Bianchi rushed to hospital.

"The driver is not conscious and has been sent to the hospital by the ambulance because the helicopter cannot fly in these conditions. Further updates will follow but for the moment we cannot say anything. I will keep you updated as fast as I can," FIA head of communications Matteo Bonciani told reporters.

No champagne was sprayed on the podium and there were no celebrations.

Germany's quadruple world champion Sebastian Vettel, who announced on Saturday he was leaving Red Bull at the end of the season, finished third.

The win was Hamilton's eighth of the season and first at Suzuka, with his only other win in Japan coming at the Fuji circuit with McLaren in 2007.

Source: Reuters