BERLIN, Md. (CBS/AP) — The National Park Service says a Montgomery County man has drowned off the Maryland coast of Assateague Island National Seashore.

Park Service spokeswoman Liz Davis tells local media that 45-year-old Charles Poole of Trappe, Pennsylvania, was swimming with his teenage son at an unguarded part of the beach on Tuesday afternoon.

Davis says surfers found Poole unresponsive in the water and brought him ashore. Lifeguards performed CPR, but Davis says Poole was pronounced dead at a hospital in Berlin, Maryland. His son was not injured.

Davis says the surf was rough on Tuesday.

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