A spectator has been killed and two others injured on the Tour de France Saturday after being hit by a police motorbike on the 14th stage, French radio reported.

The accident happened in the village of Wittelsheim, about 40km from the start of Saturday's stage in Colmar.

Organisers confirmed earlier that three spectators were being treated at the scene by paramedics before being taken to hopsital in Mulhouse.

It later emerged that a woman in her 60s died at the scene.

According to France Info radio the woman was crossing the road after a breakaway group of riders had passed when she was hit by one of the several police motorbikes which accompany the race.

After the collision the motorbike landed on its side, hitting two roadside spectators, a 37-year-old woman and a man in his 60s.

Both victims were transported by helicopter to nearby Mulhouse.