Operations at Dublin Airport were suspended once again last night after a drone was spotted on the airfield.
Ryanair has repeated its call for the Department of Transport to take action against illegal drone activity.
Dublin Airport Authority has branded the flying of drones in and around the airport as "irresponsible" and "reckless."
At around seven o'clock last night, operations were brought to a halt after one was spotted on the airfield.
The same thing happened on both Friday and Saturday, with arrivals and departures grounded for a period of time.
Across the three days of disruption, a number of flights were unable to land and were forced to divert to both Belfast and Shannon.
Ryanair says thousands were affected and it wants the Transport Minister to protect the country's main airport from illegal drone activity.
It has accused Minister Eamonn Ryan of staying silent and failing to confirm what actions are being taken to prevent further disruption.
In a tweet last night, the DAA reminded the public that it is illegal to fly drones within five kilometres of the airport.
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