https://www.theregister.co.uk/2017/12/11/dji_type_drone_idd_in_airprox_report/

A "DJI Mavic type" drone was flown close to an airliner leaving London City Airport in September, a recently published UK Airprox Board report has revealed.

The report is unusual in that most drones involved in airprox incidents are not identified so specifically by pilots.