Drone and plane near-miss 'could have been fatal'

The Civil Aviation Authority is warning drone pilots they must obey rules after a radio-controlled model helicopter came within 20ft (6m) of a plane landing at Heathrow.

The Airbus A320 was 700ft (213m) above the ground when the pilot spotted the drone over the aircraft's wing.

Gerry Corbett of the Civil Aviation Authority and Dr Ivan Sikora of City University London appear in this report by BBC London's transport correspondent Tom Edwards.