Dublin Airport is advising passengers to expect long delays for security screening.
It says it's due to staffing issues, and that new staff have been hired but it expects the problem to persist until the new employees have been trained.
This woman queued for three hours last night:
"So we arrived just after six o'clock after twenty past nine flight, and I had never seen anything like the carnage absolute on organised chaos. I was just so taken aback by how long the queue was. The only thing staff did do was they're handing out bottles of water because the heat was absolutely unbearable. From a Covid perspective, it was literally Covid central and one was married man wearing masks. There was no social distancing."