SOUTH BOSTON (CBS) – A body pulled from Boston Harbor Tuesday afternoon in the waters off of Castle Island has been identified as the 41-year-old passenger who fell off a ferry Saturday evening.

Boston and Quincy police harbor units spotted the body on sonar Tuesday afternoon.

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The victim, a Wilmington man, fell off the Provincetown II ferry and disappeared Saturday night.

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The Suffolk County District Attorney’s Office has not released the man’s name, but confirmed the remains belonged to that missing passenger.

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An autopsy is underway to determine the cause of death.