Many believe that the army would like to see Mr Khan come to power, and that it may be providing him with help.

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Mr Khan, now Afghanistan's power-and-water minister, was deposed in 2004, partly due to an offensive by militants in Shindand district, around Azizabad.

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Mr Waley said Mr Power's niece saw Mr Khan sitting in the Bentley - when she challenged him he got out and walked off.

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