Window cleaners drop in on Shard press conference

Name: Window cleaners drop in on Shard press conference
Uploaded: 2012-07-05T09:32:54.000Z
Duration: 49 s
Description: A press conference to mark the opening of the Shard was briefly interrupted by some surprise guests.

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A news conference to mark the opening of the Shard was briefly interrupted by some surprise guests.

Architect Renzo Piano was speaking to journalists at the event on Wednesday when a group of window cleaners appeared alongside them on the 14th floor.

5 July 2012