Drone-users are being urged to stick to strict rules about where they can fly them after flights from Jersey Airport were grounded for a time on Saturday.
The incident has been reported to the European Aviation Safety Agency.
A private pilot reported having to take action to avoid a drone shortly after taking off in an easterly direction 1.40pm.
Departures were suspended and the police called to the Trinity area to investigate.

There were no further sightings, and flying resumed around forty minutes later.
Flights has continued to land throughout, coming in over St Ouen's Bay.
Ports of Jersey is reminding drone users they can't be flown at more than 400 feet and within 2 nautical miles of the airfield without prior permission from Air Traffic Control.
A user-guide is available to view and download at www.jerseyairport.com
"The safety and security of passengers, crew and aircraft remains a priority for Ports of Jersey, which would like to apologise to anyone affected by this delay but thank them for their patience and understanding." - Ports of Jersey

Muratti Tickets on now on sale
Jersey Cricket men's team play at Lord's
Seabird protection outweighs visual impact after predator fence appeal
Guernsey rejects inter-island ferry proposal
The newly revealed faces and details of Jersey's past
Up to £150 for families to help with school essentials
No more funding from Guernsey for Jersey company that delivers its newspapers
More security for Jersey renters and landlords from today