He was said to have been wearing a grey baseball cap with a peak worn at the back, a black T-shirt with a Nike logo on the left breast and black tracksuit bottoms, worn low on his hips.

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One, who may have run with a slight limp, was wearing a baseball cap with a cream or white peak, a light blue hip-length hooded jacket and reflective strips down the sleeves.

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He retired in 1999 at the peak of Microsoft's market cap, bought a used Gulfstream III jet and invested his nine-figure fortune in dinosaur fossil hunts and the like.

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But the small-cap index immediately reversed course from its new record peak of 859.08, and closed the week below the 850 level.

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Opening the Labour-led debate, Ms Eagle said her party would introduce a "strict cap" on fare increases, and would consider simplifying fare structures and introducing a "single national definition" for peak times.

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