Pirates shoot dead four American hostages:
Pirates shot dead four US hostages on a private yacht on Tuesday, the deadliest incident involving Americans kidnapped for ransom in the increasingly dangerous waters off Somalia.
Four Americans taken hostage by Somali pirates off East Africa were shot and killed by their captors Tuesday, the US military said, marking the first time US citizens have been killed in a wave of pirate attacks plaguing the Gulf of Aden and the Indian Ocean for years.