While a group calling itself Islamic Jihad in Yemen has claimed responsibility for the attack, McCormack said the United States has suspicions that al-Qaida or a local affiliate may be to blame.

• 一个自称为“也门伊斯兰圣战组织”的团体宣称对袭击负责，不过麦科马克说，美国怀疑这次袭击是基地组织，或在当地的一个附属组织策划的。