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Drones banned in London during Obama visit

The UK's Civil Aviation Authority says the measures, which prohibit unmanned aircraft flying over central London between 21 and 24 April, are part of an "overarching security plan."

London's drones are grounded, as the UK's aviation regulator has banned unmanned aircraft from flying during an upcoming visit from US President Barack Obama.

The Civil Aviation Authority (CAA) is bringing in the temporary changes, which will stop drones flying over central London, as well as Windsor, where the President is set to meet the Queen this Friday. Restrictions will apply from tomorrow until the end of this week. Drone pilots in the area may want to check out the specifics of where and when their aerial gadgets will be banned from flying.

"These restrictions mean no aircraft, other than those authorised by the Metropolitan Police Service, will be able to enter the restricted airspace below 2,500 feet during these times," the CAA said, noting that aircraft includes all forms of commercial and general aviation aircraft, along with air balloons, small balloons, drones, any kite and any parachute.

The CAA says restrictions of this kind are fairly common, and can be put in place for large sporting events and national occasions.

On Sunday a drone was reported to have struck a landing passenger jet at London's Heathrow airport.