The Head of Communications for daa has said "well over 1,000 passengers" missed their flights at Dublin Airport due to lengthy queues on Sunday.
Speaking on RTE's Morning Ireland, Kevin Cullinane said an updated figure on how many people were unable to get through security in time for their departure flight will be issued later today.
He said: "At this stage, we estimate over 1,000 passengers... we will be doing a final tally with all our airline partners and customers again this morning to ascertain the final number".