Navy Seals from US Special Operations Forces conducted a raid in southern Somalia on Monday that killed Saleh Ali Saleh Nabhan, one of 4 co-conspirators wanted in the 2002 bombing of an Israel owned hotel in Mombasa, Kenya, two senior U.S. military officials told Fox News.

Ten days ago President Obama signed the Execute Order for Nabhan, who since 2006 was on the FBI's list of most wanted terrorists. He was also wanted for the attacks on the U.S. Embassy in Kenya in 1998.

They called it operation Celestial Balance: at least two AH-6 Little Bird helicopters deployed from one of two U.S. Navy vessels near Somalia's coast strafed a vehicle Nabhan was using to go back and forth between meetings.

Intelligence operatives had been monitoring Sabhan prior to the attack. The helicopters passed once, firing on the vehicle, and then circled back around to retrieve the body so they could make a positive identification, according to an official.

The attack in Mombasa took place on Nov. 28, 2002 - involving a suicide bomber that blew up the lobby of the Israeli owned Paradise hotel. On the same day the attackers unsuccessfully attempted to shoot down an Israeli owned Boeing 757 civilian jetliner run by Arkia. They fired surface to air missiles and missed.

Nabhan's Somali group, Al- Shabaab, has links to Al Qaeda.