More Olympic lights removed

Engineers have removed a second pair of lights from London's Olympic stadium. The 14 iconic triangle-shaped towers gave the stadium it's distinctive appearance during the 2012 games.

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Delicate process begins to remove Olympic lights

Before the floodlights are removed temporary cables are placed across the stadium to keep the towers stable. The lights are then taken down in pairs. Each pair of lighting towers is lifted and lowered to the ground using cranes with a 600 tonne lifting capacity.

Work to construct the new 45,000sq metres roof begins in the spring. It will be completed by spring 2015 when final preparations for the Rugby World Cup will take place including installing concessions, toilets, turnstiles and hospitality areas.

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