Sana'a: Three men, including a US-born cleric, have been charged in absentia in Yemen for plotting to kill foreigners.

It's the first formal legal action against the radical cleric, Anwar Al Awlaki, and comes as the country faces pressure to crack down on the terror network following the interception of two bombs in Dubai and Britain last week.

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Prosecutors announced the charge against Al Awlaki on Tuesday as they opened a trial against another man, Hesham Assem, who's been accused of killing a Frenchman in an attack at an oil firm On October 6. They also charged a third suspect in absentia.

Al Awlaki, the New Mexico-born cleric, is based in Yemen and has been linked to recent terror attacks in America, including the failed Christmas Day bombing of a Detroit-bound plane.