Roof is raised on Olympic stadium

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The first of 28 trusses that will support the roof on London's Olympic stadium has been put in place.

The 30-metre steel support has raised the height of the stadium in Stratford, east London, to 37 metres above the future podium level.

The 85-tonne section of steel was raised by a super-crane that held it in place while it was bolted to the support columns.

The rest of the trusses will be levered into place over the next nine months.

The Olympic Development Authority (ODA) chair John Armitt said: "The construction of the roof starts to give a real indication of the height of the structure and people can start to see for themselves how the Olympic stadium will look during the Games."

Mr Armitt said the complex engineering project was progressing well.

More than 500 people are working on the Stratford site, a number that organisers say will grow closer to the stadium's completion.