Radical US-born cleric Awlaqi killed in Yemen

US-born cleric Anwar Al Awlaqi, a prominent Al Qaeda chief described by US officials as "the most significant risk" to the United States, was killed on Friday in what was called a "significant blow."

A senior US official confirmed Awlaqi's death after an announcement by the  Yemeni defence ministry.

"I can confirm ... he's dead," the senior administration official said, without providing details. 

In Sanaa, the defence ministry said Awlaqi was killed on Friday morning but did not elaborate on the circumstances.

Tribal sources told AFP that Awlaqi, who was on a US wanted list, was killed in an air strike on two vehicles in Marib province, an Al Qaeda stronghold in eastern Yemen, early in the day.

One of them quoted what he said was a man travelling behind Awlaqi in a second vehicle and who was himself wounded.

The man, Khamis Arfaj, said Awlaki and two others, one of them Arfaj's brother, Salem, "were killed instantly from a direct missile hit to their pick-up" truck. The source said he suspected they died in an American drone strike, saying "US planes have been flying overhead for days now."

"At about 9.30am, what appeared to be a US aircraft fired on the two cars Awlaqi and his fellow operatives are believed to have been travelling in," he said.

US Republican Representative Peter King, chairman of the House Committee on Homeland Security, called Awlaqi's killing "a great success in our fight against Al Qaeda and its affiliates."

Meanwhile, British Foreign Secretary William Hague said Friday the killing of Al Awlaqi, if confirmed, is a "another significant blow to Al Qaeda."

"With the attempted Detroit bombing and the aeroplane cargo bomb plots he has demonstrated his intent and ability to cause mass terror, whilst his murderous ideology was responsible for inspiring terrorist attacks in the UK and the US," Hague said in a statement.

"For the past several years, Al Awlaqi has been more dangerous even than Osama bin Laden had been. The killing of al-Awlaqi is a tremendous tribute to President (Barack) Obama and the men and women of our intelligence community," he said.

Al Qaeda leader Bin Laden was killed when US special forces raided his compound in Pakistan on May 2.

Another tribal source, also on the condition that he not be identified, spoke of rumours that Awlaqi had recently changed locations within Yemen. Up until three weeks ago, he was been believed to have been hiding out in the southern Shabwa province, another militant bastion.

"But then word came that Awlaqi was in fact in Marib province, a move he made sometime in the last three weeks," the source said. 

The source added that Yemeni security forces have been more actively seeking Awlaqi in Marib since the speculation that he had moved.

He said Awlaqi, feeling threatened by intensified efforts to capture him, "fled Marib last week to hide out in the nearby al-Jawf province" on the Saudi border.

A US-based group specialised in monitoring jihadist organisations described Awlaqi's death as a "significant blow to Al-Qaeda in the Arabian Peninsula (AQAP)."

IntelCenter said in a statement that it "would especially impact the group's ability to recruit, inspire and raise funds."

But while AQAP would suffer because of Awlaqi's "unprecedented" ability to "influence and connect to a broad demographic of potential supporters," IntelCenter said it remains one of the most dangerous militant groups in the region.

Earlier this month, the Washington Post said the United States was building an array of secret new drone bases to conduct strikes against Al-Qaeda targets in both Yemen and Somalia.

Yemeni authorities officially deny the use of drones against Al Qaeda targets in their country, saying Washington provides only logistical support to Sanaa's fight against extremists.

Witnesses and residents of the southern province of Abyan, where the government is fighting an ongoing battle against Al Qaeda-linked militants, regularly charge that American drones are carrying out air strikes there.