NAIROBI, Kenya (AP) - Pirates in Somalia say they're ferrying more ammunition and fighters to the hijacked ships they're holding, and they're threatening to kill hostages if warships approach.
The claim comes a day after four Americans were killed on the yacht Quest and 15 pirates were detained. U.S. Central Command says the pirates could be brought to the U.S. for trial. They are being held on the aircraft carrier USS Enterprise in the waters off East Africa.
The military is working with the FBI and the Justice Department to investigate the killings of Phyllis Macay and Bob Riggle of Seattle, and Jean and Scott Adam of Marina del Rey, California. It says a pirate fired a rocket-propelled grenade at a U.S. warship before gunfire broke out on board. When Navy special forces reached the yacht, they found the four American hostages had been shot and killed.
It's not publicly known whether the violence was the result of a fight among the pirates or an escape attempt by the hostages or something else.