Massive test of Olympic security in skies about London

Last updated at 17:21
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Ricky runs through the security in place for the Olympics

The London Olympics games will be the biggest peacetime security operation that the UK has ever seen.

Thousands of armed forces will be brought into the capital to protect spectators, visitors, officials and athletes.

Today Typhoon jets flew over London as part of security testing ahead of the games.

Ricky checks out the full security operation that will be in place for London 2012.