(Caswell County, N.C.) (AP) — Animal welfare advocates say the fatal mauling of a zoo intern by a lion that escaped from a locked pen illustrates the need for North Carolina regulators to crack down on unaccredited exhibitors of dangerous animals.

Alexandra Black was attacked Sunday while cleaning an animal enclosure with other staff members. It was at least the 10th instance of an escape or attack by an animal at a privately run North Carolina wildlife facility since 1997. That’s according to the Humane Society.

Black, who died Sunday at the Conservators Center near Burlington, graduated in May 2018 from Indiana University after completing the degree program at its Center for the Integrative Study of Animal Behavior.

The university center’s director, Cara Wellman, says Black’s death has stunned and saddened faculty members, who were thinking about her parents.

Wellman says the program has about 100 students pursuing majors in the close-knit program on the Bloomington campus.