(A.P. / KLZA-- Authorities say a man drowned in northwest Missouri while attempting to retrieve a boat that was adrift on the Missouri River Friday.

The Missouri Highway Patrol identified the victim as 30-year-old Benjamin Hirner, of Mokane, Missouri.

The patrol said he went into the water just north of where the Nishnabotna River flows into the Missouri River in Atchison County around 6:30 A.M., his body was recovered at approximately 11:45 A.M.

A Nebraska Air National Guard helicopter flew Hirner to an Omaha hospital, where he was pronounced dead.

The Iowa Department of Natural Resources, Atchison County Emergency Management, Nebraska Air National Guard along with multiple first response personnel from the area assisted.