The United States said yesterday that the U.N. Security Council has approved sanctions against the al-Qaida-linked terrorist group Boko Haram, which has carried out a wave of deadly attacks and the recent abduction of nearly 300 schoolgirls in Nigeria. U.S. Ambassador Samantha Power welcomed the action, calling it "an important step in support of the government of Nigeria's efforts to defeat Boko Haram and hold its murderous leadership accountable for atrocities." Nigeria asked the Security Council committee monitoring sanctions against al-Qaida to add Boko Haram to the list of al-Qaida-linked organizations subject to an arms embargo and asset freeze.