Day in Photos: Aug. 17, 2012

Horses crash on the first curve of the dirt-covered course in Siena's main square during the Madonna dell'Assunta ancient Palio horse race in Tuscany, central Italy. One of the horses broke a front leg in the crash. Animal rights campaigners are calling for an end to the famed Palio after six of ten horses crashed during the latest edition. Critics have long held the race, a fierce competition between the Tuscan city's quarters, should be held without animals. Horses frequently fall, collide, or are trampled during the race, and some 50 have died since 1970..