Thousands of air passengers are facing delays because of changes to security checks.

The measures came in in March after the Paris and Brussels terror attacks.

However the daa stay any additional checks would be on arrival at other EU destinations, and not from Irish airports.

EU countries have to carry out tougher checks on passengers entering or leaving the Schengen area - which covers most of mainland Europe and lets people move passport-free.

But because Ireland is not part of Schengen it means people flying between Ireland and other European countries could be subject to the longer checks.

Travellers' details now have to be run through databases to see if they pose a threat.