A male's body that washed up at the port of West Memphis, Ark., Jan. 18, is not the same body of a man who fell overboard into the Mississippi River in DeSoto County, Miss., the Crittenden County Sheriff said.

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Crittenden County investigators said the body found up river at the Port of West Memphis is not the 60-year-old man who fell overboard Jan. 16.

The body recovered at the Port of West Memphis remains unidentified and medical examiners do have not determined a cause of death.