Championship leader Lewis Hamilton suffered his first retirement of the year as Sebastian Vettel romped to victory in the Singapore Grand Prix.
Vettel took his third win of the year in dominant style, controlling the race from start to finish as two safety cars led to hectic action behind.
The second caution period was caused by a man wandering along the track.
German car giant Volkswagen is close to agreeing a deal to take over the Red Bull Formula 1 team, says BBC F1 chief analyst Eddie Jordan.
The agreement would see VW buy the team and build its own engine, while Red Bull continues as a major sponsor.
Jordan says a VW engine would not enter F1 until 2018 and Red Bull would use Ferrari power in the interim.
Former F1 champion Michael Schumacher has left a Swiss hospital to continue his recovery at home, his manager says.
Sabine Kehm said in a statement that he had made "progress", but there was "a long and difficult road ahead".
Schumacher suffered a head injury in a skiing accident in France in December last year and was transferred to the Swiss hospital in June.
Schumacher's family said in June that he had come out of a medically induced coma to reduce swelling in his brain.
