The Department of Foreign Affairs says it is providing consular assistance to the family of a Mayo man killed in eastern Ukraine.
Finbar Cafferkey, who was in his 40s and a native of Achill, was a military volunteer and had recently travelled to Ukraine to assist local forces.
He had previous combat experience in Syria where he assisted Kurdish militia in their battle against Islamic State.
Finbar’s death was confirmed by his family yesterday but further details on the circumstances haven't been reported.
In a statement, his father said:
"We are grieving... it's a private matter. I don't want to say anything further"