According to a post on its Facebook page, the Chincoteague Volunteer Fire Company said that one of the ponies that participated in the pony swim Thursday died in a tragic accident at the carnival grounds.

A pony named Riptide was chasing Butterfly Kisses in the pen at the carnival grounds when Butterfly Kisses slipped and crashed into a fence breaking her neck. A veterinarian and firemen were on the scene helping the pony immediately but there was no chance of survival.

Butterfly Kisses was euthanized and returned to Assateague for burial. A foal of Butterfly Kisses was sold at the auction Thursday to a local family.