MANHATTAN BEACH (CBS) — Somali pirates are threatening to kill a surfing journalist from Manhattan Beach if Navy SEALs attempt to rescue him.

Michael Scott Moore, who is researching for a book on piracy, was abducted 10 days ago by at least a dozen men in two SUVs.

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The armed kidnappers, who reportedly took him to a village on the Indian Ocean, are now demanding ransom for his release.

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Last week, U.S. Navy SEALs rescued American aid worker Jessica Buchanan and her Danish colleague from the pirates.

Moore, who wrote “Sweetness and Blood”, a critically acclaimed book on the history of surfing, is one more than 150 people still being held by pirates.

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His condition was not immediately known.