The powerful Somalia insurgent group, al-Shabab, vowed revenge Tuesday after one of its members was killed in a U.S. raid.
Two chief members of the group promised retaliation for attack that killed Saleh Ali Saleh Nabhan on Monday.
"They will taste the bitterness of our response," one of the commanders told The Associated Press in a telephone interview. Both members asked that their names be concealed as they are not authorized to speak publicly.
Nehbab was on Africa's list of most wanted al-Qaeda suspects in connection with the deadly car bombing of a beach resort in Kenya as well as for an almost simultaneous attempt to shoot down an Israeli airliner in 2002.
Monday's raid took place amid worries that al-Qaeda was developing a foothold in the nation.
Ernst Jan Hogendoorn, Horn of Africa Project Director of the International Crisis Group, said the "surgical" precision of the attack indicates the U.S. possesses detailed intelligence in Somalia.
"I think it will certainly make al-Shabab leaders much more cautious when they are operating because obviously the United States has very precise intelligence about their movements," he said.
It is the goal of al-Shabab, who the U.S. believes has ties to al-Qaeda, to overthrow Somalia's government and to implement a strict form of Islam in the nation.