ASSATEAGUE, Md. (AP) — Park authorities say a beachgoer has drowned after going for a late-night swim at the Assateague Island National Seashore.

Liz Davis, a spokeswoman for the national park, says 28-year-old Oniruddo Paul Somroy of Rockville was pronounced dead at a nearby hospital early Sunday morning.

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The Daily Times of Salisbury reports that Somroy had been on the beach with a friend when he decided to go for a swim at about 11:30 p.m. Saturday.

He soon began to struggle, and the friend lost contact with him.

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The friend called 911, and park rangers searching for Somroy found him in the surf about an hour after he went missing.

Davis said the investigation remains open.

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