Ireland's delegates kept their seats during a speech by Israeli Prime Minister Benjamin Netanyahu to the United Nations on Friday.
Mr Netanyahu addressed the UN General Assembly during which he vowed to keep up Israel's attacks on Iranian-backed fighters in Lebanon.
"As long as Hezbollah chooses the path of war, Israel has no choice, and Israel has every right to remove this threat and return our citizens to their homes safely," he said.
"Israel has been tolerating this intolerable situation for nearly a year. Well, I've come here today to say enough is enough," Mr Netanyahu added.
A large number UN delegates walked out of the chamber as he began speaking.
A Department of Foreign Affairs spokesman confirmed to Newstalk that Ireland was not among them.
"Ireland was represented at official level throughout yesterday’s session," they said.
"Ireland has a long-standing policy of having our seat occupied for every national statement".
Mr Netanyahu's speech came as Israeli airstrikes hit Lebanon's capital Beirut on Friday, killing at least six people and injuring 91.
The strike was the strongest carried out by Israel in Beirut during its nearly year-long conflict with Hezbollah, which began when the Iran-backed group began firing rockets into Israel almost immediately after Israel's retaliation for a Hamas attack from Gaza on October 7th.
More than 720 people have been killed in Lebanon since the conflict escalated following pager and radio explosions, according to Lebanon's Health Ministry, as over 200,000 people have been displaced.
In Gaza more than 41,000 people have been killed since the Israeli war began last October with over 94,000 injured.
Recent data from the World Health Orgainsation (WHO) estimates that over 22,000 people in Palestine have sustained life-altering injuries.