ELK POINT, S.D. (AP) — Authorities say they are searching for a 19-year-old man who went missing while swimming with friends in the Missouri River in southeastern South Dakota.

The Union County Sheriff's Office says the man went missing around 3 p.m. Sunday near Elk Point. Authorities assisting in the search included crews from South Dakota and Nebraska.

The man's name was not released pending notification of his family.

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