French police have arrested a suspect in connection with the disappearance of a nine-year-old girl who vanished from a wedding attended by nearly 200 guests, amid fears she has been kidnapped.

Maëlys De Araujo has not been seen since 3am on Sunday when she was attending a family wedding in Pont-de-Beauvoisin, Isère, in the French Alps. 

The suspect was 'near the wedding venue' when she disappeared, and his account of his whereabouts that night contained inconsistencies, a police source said. 

A huge search of the area has been conducted with divers, search dogs, volunteer citizens and helicopters also helping, but police believe the girl was taken away in a car and kidnapped.