Defence Minister Helen McEntee is condemning the incident, and says it's an unacceptable breach of the UN Security Council Resolution.
Members of the Irish Defence Forces have come under fire in south Lebanon.
The 127th Infantry Battalion came under "small arms fire" at 6.30pm yesterday evening, but "all personnel are well and accounted for".
The Defence Forces says the Battalion were out on patrol in armoured vehicles when the attack happened, and "initiated immediate action drills".
This is one of the last tours of duty Irish soldiers will perform as part of the United Nations Interim Force in Lebanon as the mission will soon be stood down.
Defence Minister Helen McEntee has condemned the incident, and commended the personnel involved for their professionalism in extremely challenging circumstances.

Withdrawal Of Solicitor Services For Criminal Legal Aid Cases Enters It's Fifth Day
Petrol and Diesel Prices Ease After US-Iran Peace Framework
Push For Locals In Kildare-Newbridge MD To Access Grants For Septic Tanks
Kfm Obituary Notices
Major Electricity Outage In Rathangan
Urgent Recall Of Ready Meals In Kildare, Wicklow And Wexford
€12K Funding Secured For Athy Food Market
Five People "Knocked Down" On Naas Main Street In 2024 Amid Calls For Pedestrian Crossings