There are knock-on delays at Dublin Airport after a confirmed drone sighting forced it to close earlier.
All flights were suspended after 11:30am, but the runway re-opened within 30 minutes.
Dublin Airport said "the safety and security of passengers is always our key priority".
It is illegal to fly drones within five kilometres of an airport.
All drones that weigh more than 1kg must be registered with the Irish Aviation Authority.
The IAA said today's sighting forced three flights to be diverted.
Update re this morning's drone incident. Agreed drone protocols with @IAApress were immediately activated & followed. We put passengers' safety & security first at all times. Flying drones within 5km of @DublinAirport is a crime. https://t.co/aKtncHn96w pic.twitter.com/XTx1y0Pm5m
— Dublin Airport (@DublinAirport) February 21, 2019
Dublin Airport Drone Sighting
London Gatwick Airport was shut for more than a day in December after a drone was spotted near the runway.
Labour's Transport Spokesperson has described the behaviour at Dublin Airport as 'reckless'.
Following the Gatwick chaos, Senator Kevin Humphreys said he "would have expected a strategy to be put in place for any such happens around our airports".
"Airlines and Airport Authorities must now make every effort to reduce any inconvenience for the traveling public", he said.
