Police say he hit a bump and lost control of his car in Lessos, North Rift.
Kenya's 2015 400m hurdles World Champion Nicholas Bett has died aged 28 in a road accident on Wednesday morning.
Bett's car veered off the road and landed in a ditch near Lessos along Eldoret-Kapsabet road in Nandi, North Rift Kenya, killing him on the spot.
Nandi Police Commander Patrick Wambani confirmed the death, saying the athlete hit a bump before losing control of his car.
Bett had just returned from African Championships in Asaba, Nigeria and was driving to Nairobi.
In 2015, he made history in the Beijing Championships when he became the first Kenyan to win a world gold at a distance shorter than 800m.
He was a two-time African bronze medallist.