HASTINGS, Okla. (CBSDFW.COM/AP) — Authorities say a North Texas man died on an Oklahoma lake when the boat he was riding in overturned.

The Oklahoma Highway Patrol says the death happened Monday afternoon on Waurika Lake, about 90 miles southwest of Oklahoma City. According to a preliminary report, 73-year-old Darwin Wayne Smith of Arlington, was pronounced dead at the scene.

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(credit: Felix Kastle/AFP/Getty Images)

The highway patrol says Smith’s flat-bottomed boat overturned for an unknown reason and Smith was thrown overboard into the water. The highway patrol says an autopsy will determine his cause of death and that Smith was wearing a flotation device.

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Authorities say it was cloudy and windy at the time.

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(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)