ISTANBUL (AP) — Rescuers from across Europe rushed to a cave in Turkey on Thursday, launching an operation to save an American researcher who became trapped almost 1,000 meters (3,000 feet) below the cave's entrance after suffering stomach bleeding.

Experienced caver Mark Dickey, 40, suddenly became ill during an expedition with a handful of others, including three other Americans, in the Morca cave in southern Turkey's Taurus Mountains, the European Association of Cave Rescuers said.

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