A former top aide to Usama bin Laden was sentenced Friday to life in prison for conspiring in the 1998 bombings of two U.S. embassies in Africa.

Federal Court Judge Lewis Kaplan sentenced Khaled al-Fawwaz in Manhattan. He was convicted this year.

The attacks in Kenya and Tanzania killed 224 people, including a dozen Americans.

Al-Fawwaz's lawyers had asked that he be sentenced to less than life in prison, saying he was less culpable than others.

But prosecutors say al-Fawwaz was an al-Qaeda leader who helped bin Laden make sure his 1996 declaration of war against the U.S. reached the world. They say he also led a terrorist training camp and a terror cell.

The Saudi Arabia-born al-Fawwaz was extradited from Great Britain in 2012.