A man looks at cars washed away by flood water, on October 4, 2015, in Biot, southeastern France. Violent storms and flooding along the chic French Riviera overnight have killed at least 16 people and left another five missing, the local authorities said Sunday.  AFP PHOTO / JEAN CHRISTOPHE MAGNENET        (Photo credit should read JEAN-CHRISTOPHE MAGNENET/AFP/Getty Images)