Anwar al-Awlaki
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Obama says Awlaki death a 'major blow' for al-Qaeda

US President Obama has said the killing of senior US-born al-Qaeda leader Anwar al-Awlaki in Yemen is a "major blow" to the organisation.

Officials say Awlaki and several of his associates were killed by a CIA drone attack in the north of the country on Friday.

Awlaki, who was of Yemeni descent, is believed to have been behind a number of attempts to attack the US.

Bill Hayton reports.