An Ohio woman was killed by a bison after approaching the animal while visiting Yellowstone national park in Wyoming, park officials said on Tuesday.
The 25-year-old woman was visiting the national park from Grove City, Ohio, about 20 minutes outside Columbus.
Park officials say the woman, whose name has not been released, got within 10ft of the female bison on a nearby boardwalk. The animal then gored her and tossed her 10ft in the air.
She was treated by park emergency medical staff onsite and later transferred to Eastern Idaho regional medical center via ambulance. The woman died after sustaining a puncture wound and other injuries.
Two other people were within 25ft of the same bison, but it is unclear if they were hurt.
Bison, which can weigh up to 2,000 pounds, have injured more people than any other animal in Yellowstone, according to park officials. They caution visitors to stay at least 25 yards away from all large wildlife, including sheep, deer and moose, and 100 yards away from bears and wolves.
Bison are known to be unpredictable animals that can charge at any moment, and can run up to 35 miles an hour, but this is the first reported incident this year of a bison goring an individual.