The arrondissement of Châteaudun is an arrondissement of France in the Eure-et-Loir department in the Centre-Val de Loire region. It has 61 communes. Its population is 59,262 (2016), and its area is 1,438.8 km2 (555.5 sq mi). From Wikipedia
A 15-year-old girl died and 20 students were injured after a bus crash, with the driver testing positive for cannabis use.