Osama bin Laden, the face of global terrorism and architect of the September 11, 2001, attacks, was killed in a firefight with elite American forces on Monday (1 May 2011 Pakistani time which was 2 May 2011 Washington, DC, time), then quickly buried at sea in a stunning finale to a furtive decade on the run. Long believed to be hiding in caves, bin Laden was tracked down in a costly, custom-built hideout not far from a Pakistani military academy. The stunning news of his death prompted relief and euphoria outside the White House and around the globe, yet also fears of terrorist reprisals against the United States and its allies. "Justice has been done," President Barack Obama said in a dramatic announcement at the White House. The military operation took mere minutes, and there were no U.S. casualties. U.S. helicopters ferried troops from Navy SEAL Team Six, a top military counter-terrorism unit, into the compound identified by the CIA as bin Laden's hideout - and back out again in less than 40 minutes. Bin Laden was shot in the head, officials said, after he and his bodyguards resisted the assault. Three adult males were also killed in the raid, including one of bin Laden's sons, whom officials did not name. One of bin Laden's sons, Hamza, is a senior member of al-Qaeda. U.S. officials also said one woman was killed when she was used as a shield by a male combatant, and two other women were injured. The U.S. official who disclosed the burial at sea said it would have been difficult to find a country willing to accept the remains. Obama said the remains had been handled in accordance with Islamic custom, which requires speedy burial.