GUERNSEY, Wyoming – A 65-year-old man from Gering died in a “tragic swimming accident.”

The incident occurred on July 12.

The Platte County Sheriff’s Office received a report that a man jumped from a boat on the east side of Gray Rocks Reservoir and never resurfaced.

Out of respect for the family, authorities have not released the victim’s name.

Search and rescue dive teams from across Wyoming and a towed sonar team responded. The Scotts Bluff County Dive Team was also called.

Search operations were called off on Monday, July 15. Authorities suspect the man may have slipped into an underwater cave or cavern.