Alonso team triumphs in Le Mans 24 Hours

Fernando Alonso is one step away from motor sport's triple crown after emerging victorious at the famed Le Mans 24 Hours race at his first attempt.

Mechanics work on Sebastien Buemi's car after an accident during the Le Mans 24 Hour race. (AAP)

Formula One's Fernando Alonso was one of three drivers to seal victory in the prestigious Le Mans 24-hour race.

The Spaniard, who won the F1 world championship in 2005 and 2006 but is currently at struggling McLaren, interchanged with Kazuki Nakajima and Sebastien Buemi in the Toyota TS050 Hybrid to take the title on his Le Mans debut.

Alonso, 36, is bidding to seal motor sport's triple crown by winning F1's Monaco Grand Prix, Le Mans and the Indianapolis 500.

He has now won two of the three and was unlucky at last year's Indy 500 when he had to retire having impressed on debut. He is now expected to give Indianapolis another go in future years.