The government has announced strict new rules on which aircraft are allowed to fly over London’s Olympic Park next year.
Transport minister Theresa Villiers said there would be an inner prohibited airspace zone around the stadium in Stratford, east London, within which only certain aircraft would be allowed to fly.
Only aircraft which are operating commercial services and have been subject to full security procedures will be allowed to fly over this zone.
There will also be an outer restricted zone about 60 miles wide for all type of aircraft as long as they satisfy air traffic control requirements for identification and monitoring.
Mrs Villiers said: "These measures have been designed to help to protect key Games locations from potential airborne threats.
"It is normal practice to implement airspace restrictions during large-scale events such as major sporting events, and similar measures have been put in place for previous Olympic and Paralympic Games.
"The measures have been developed to be proportionate and to minimise the impact on the aviation community during the summer of 2012."
The measures are expected to be in place from July 13 to September 12, 2012 for the duration of both the Olympic and Paralympic Games.
Scheduled air services are expected to operate as normal and south-east England airports are likely to stay open.
Plans for airspace controls over other Olympics venues outside south-east England are still being considered and will be announced at a later date.