Authorities found the body of a young man who died after jumping from a cliff in Hyrum Reservoir in Cache County on Friday afternoon, although it’s too early to say exactly how he died.

The victim, described as a “male young adult,” jumped into a restricted area on the east side of the dam called Big Toe. The youth appeared to struggle after surfacing, before sinking again, according to a news release from the Cache County Sheriff’s Office.

About 40 others were with the victim when he jumped into the water, and some witnesses tried to help the young man before first responders arrived.

(Eli Lucero | Herald Journal) Members of Search and Rescue look for a swimmer on Friday, May 25, 2018, in Hyrum Reservoir.

As of 5:45 p.m., authorities hadn’t found the victim and transitioned “into a recovery effort,” according to the release, meaning they were operating as if the man had died. Police announced they’d recovered his body just after 8:30 p.m.

The sheriff’s office hasn’t released the victim’s name, pending notification of his next of kin.

“Our deepest condolences are with all those who are enduring this tragic incident,” the release states.

The man’s official cause of death hasn’t yet been determined.