London's new-look Olympic stadium unveiled, as the final bill looks set to rise

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London's new-look Olympic stadium was unveiled today as legacy bosses admitted the final bill is set to rise.

The iconic London 2012 venue now boasts a transparent polycarbonate roof and retractable seats.

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The distinctive triangular floodlights have been replaced by 'upside down lookalikes' suspended from the roof.

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Local Olympian Christine Ohuruogu posed for pictures on the athletics track ahead of the Sainsbury's Anniversary Games in July.

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The stadium, built at a cost of £429m, is being converted into a 'multi sports arena' and new home for Premier League football club West Ham.

Credit: ITV News

Construction work will be suspended during the Summer to allow the stadium to host the anniversary games and some Rugby World Cup matches.

Credit: ITV News

The transformation bill has already passed £190m. Unforeseen costs to strengthen the roof added £36m.

The total cost of the stadium now stands at £620m but the London a Legacy Development Corporation has yet to reveal the bill for the retractable seats.