Sioux Falls, S.D. (KELO-AM) Two sisters injured in a car-train collision in Alta, Iowa have died. 4-year-old Chloe Binder and 2-year-old Camille Binder died of their injuries Friday at Avera McKennan Hospital in Sioux Falls. The girl's mother, 37-year-old Heather Binder, of Alta was also injured in the crash and is listed in fair condition. The driver of the car, Heather Binder's 15-year-old son Nathaniel Harms of Storm Lake, is expected to be OK.