Natrona County authorities are searching for a man who fell off a boat while fishing at Alcova Reservoir Saturday evening, the Natrona County Sheriff's Office said on Facebook Sunday.

The sheriff's office was notified regarding the incident at roughly 7 p.m. Saturday.

Crews are on the water and utilizing sonar to aid in the search.

The public is being asked to avoid the area around Fremont Canyon as searchers work.

No further information has been released.

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