MONACO (AFP) - Nico Rosberg became the first son of a former Formula One Monaco Grand Prix victor to win on the streets of the Mediterranean principality when he drove his Mercedes race car to an accomplished victory on Sunday.

In a chaotic race littered with accidents, red flags and two safety-car interventions, the 27-year-old German, son of 1983 victor Keke Rosberg, produced an impeccable race to claim the second F1 win of his career.

After more than 2hr 20min of contested action, he came home ahead of second-placed defending F1 champion Sebastian Vettel and his Red Bull team-mate Mark Webber.

Lewis Hamilton, the 2008 champion and Rosberg's team-mate, finished fourth after losing two positions, owing to the delayed introduction of the first safety car early in the race.

Rosberg, blessed with the looks of a Hollywood star, showed a minor galaxy of celebrity guests how much concentration is required with his accomplished win as he led from start to finish.

"Yes!" he screamed on the team radio after crossing the line. "I can't believe it - the car has been awesome. Thank you - it's been very special for me today."

Adrian Sutil finished a strong fifth for Force India, ahead of Jenson Button for McLaren, two-time champion Fernando Alonso of Ferrari and Jean-Eric Vergne of Toro Rosso.

In the drivers' championship, Vettel enhanced his position as leader with 107 points, ahead of Raikkonen on 86 and Alonso on 78.