BURWELL, Neb. (AP) — A 72-year-old man has died after falling into the water at Calamus (KAL’-uh-muhs) Reservoir in north-central Nebraska.

The Loup County Sheriff’s Department said Friday that the accident occurred around 5:30 p.m. Thursday. A witness reported that the man had fallen in while getting onto a boat dock.

The witness says the man struggled as he tried to swim to his drifting boat. The witness says he unsuccessfully used a long pole to try to reach the man and then left to get a life vest to throw to him. By the time the witness returned the older man had gone under.

The department says a dive team was called in, and the man’s body was recovered around 6:30 p.m.

The names of the man and the witness haven’t been released.