Updated at 11:22 a.m.
The U.S. military reports pirates have killed four American hostages they were holding on a yacht off Somalia's coast. The U.S. Central Command says negotiations had been under way to try to win release of the two couples on the pirated vessel Quest.
Gunshots were heard; and when U.S. forces reached the yacht, they found four all four hostages had been shot.
Two of the hostages. Phyllis Macay and Bob Riggle, are from the Seattle area. Quest was owned by Jean and Scott Adam, a couple from California who had been sailing around the world since December 2004. The Associated Press reports U.S. Navy personnel administered to the four as soon as they could board the boat, but all had died from their wounds.