Gardaí are investigating the targeting of several aircraft at Dublin Airport with laser lights last week.
RTÉ News understands that at least five aircraft were targeted as they came in to land at Dublin Airport last Friday night.
The incidents did not result in any flight diversions or delays and did not have any impact on operations at the airport.
In a statement, gardaí confirmed that an incident had been reported to them at around 9pm last Friday.
A garda spokesperson said inquiries are ongoing.
A spokesperson for the daa said the authority does not comment on security issues.
Retired Air Corps Lieutenant Colonel and airport safety and security auditor Kevin Byrne said it was a "very disturbing report" that the planes were targeted as they approached Dublin Airport.
Speaking on Today with Claire Byrne, he said he would "respectively suggest that the Garda Air Support Unit could be employed" to counter the issue.
Mr Byrne said if a laser is pointed at an aircraft, it can be seen where it is coming from and then "send in the ground unit, send in your garda response team and you could nip it in the bud".
He said that in the US it is a federal offence to target airplanes with laser lights "so it is a very serious matter, and I think we have to adopt a very serious approach to it in this country as well".
