A three-year-old male Asian elephant beloved for his cheeky spirit and playful antics, has died suddenly at Sydney's Taronga Zoo.
Jai Dee died on Tuesday afternoon, a statement from the zoo said on Wednesday.
On Monday morning the zoo's elephant keepers noticed Jai Dee was presenting with abdominal pain and he was treated by vets and seemed to respond well.
"But unfortunately his condition deteriorated rapidly yesterday morning and despite a full emergency response he could not be saved," the statement said.
Senior Veterinarian, Dr Larry Vogelnest, said that Jai Dee's death was a "very sad and sudden event", with the preliminary cause of death identified as a twisted bowel.
Taronga Director and CEO Cameron Kerr said the entire Taronga family was mourning.
"And no doubt the other elephants will be mourning his loss as much as we are. He was part of our zoo family and we are beyond devastated by his loss," he said.
"In his time with us, his cheeky spirit and playful antics including a fondness for swimming has endeared him to guests both locally and from around the world," he said.
"His name in Thai means 'heart' and today we lost a piece of Taronga's heart by his sad passing".