A captive grizzly bear mauled a man to death Sunday morning when the 24-year-old tried to clean the grizzly’s enclosure in Montana.

The 24-year-old Pennsylvania native, whose name was not immediately released because his next of kin wasn’t notified, was working at Animals of Montana in Bozeman when one or two captive grizzly bears mauled him to death Sunday, the Associated Press reported.

The wildlife casting agency has two captive grizzly bears, the AP reported. It’s unclear whether both animals were involves in mauling the man to death, Gallatin County Sheriff Brian Gootkin told the wire service.

The man was cleaning the bears’ enclosure when he was killed.

"It's obviously a tragic situation, and I don't think we'll ever know exactly what happened," Chuck Watson, lawyer for Animals of Montana owner Troy Hyde, told the Bozeman Daily Chronicle.

The lawyer told the paper that the grizzly had to be euthanized by Animals of Montana staff so employees could get to the victim.

Animals of Montana is a wildlife casting agency that raises wild predators to be used in photographs or movies, according to the company’s website.

“The devotion needed to raise healthy, photogenic, well-mannered predators for the entertainment industry is our life long goal,” the company says on its website. “Our animal actors are all treated with love, respect and trained with the utmost kindness and positive methods while keeping their unique needs in mind.”