Utah licensors have taken emergency action against Provo Canyon School, an embattled teen treatment center, after they say staff at its Provo facility did not seek immediate medical care for a client who was seriously injured during a fight.

Officials took that emergency step on May 19, triggering a 30-day period where the Provo facility can’t accept new clients and is subject to closer state monitoring. The teen treatment center also must retrain staff on how to respond to emergencies and how to properly supervise the young people in their care.

The fight between two clients broke out May 12, according to the state’s Department of Health & Human Services. One lost consciousness and was bleeding from the mouth.

Provo Canyon staff did not call 911 and instead took the teen to an emergency room themselves, the state health agency said. That resulted in about a one-hour delay in treatment, state licensors say.

When the teen was taken to a hospital, the notice of emergency agency action states, they were treated for a jaw injury and brain bleed.

Provo Canyon School is owned by Universal Health Services. Provo Canyon CEO Tim Marshall said in a statement to The Salt Lake Tribune that “Provo Canyon School maintains comprehensive safety procedures and ongoing monitoring practices designed to protect and support our residents.”

Marshall declined to speak specifically about the teen’s medical care, citing medical privacy laws.

“Provo Canyon School is committed to providing high-quality care to adolescents with special, and often complex, mental health needs,” he said.

Provo Canyon School is one of Utah’s oldest programs for so-called “troubled teens” — and it has long faced allegations about its treatment of young people.

Just a few years after it opened in the 1970s as a boys school, the American Civil Liberties Union of Utah sued it over its practice of using lie detector tests on boys and pulling students’ hair to get them under control, called a “hair dance.”

The school won its lawsuit, but allegations of abusive tactics have continued in the years since. Celebrity Paris Hilton, who went to Provo Canyon School in the 1990s, is among its most high-profile former residents who allege abuse.

She has said that she was abused in the program, overmedicated and was sexually assaulted when she was given pelvic exams that had no clear medical purpose.

The Springville girls’ campus was under closer state watch last February after a staffer “struck” a teenager who was being physically restrained.