Four Americans Held Hostage & Murdered By Somali Pirates (PHOTOS)

(via CBS)

The four Americans aboard a yacht hijacked by pirates off the coast of Somalia are dead.

Hijacked last Friday off Oman, the Quest was being piloted toward the Somali coast - and was being shadowed by a U.S. Navy warship.

CBS News national security correspondent David Martin reports that gunshots aboard the yacht were heard, and the warship took action.

All 4 Americans were dead, killed apparently by their captors.

There were more than a dozen pirates on board, some dead and others captured, Martin reports.