The Taoiseach has said the expulsion of two Irish diplomats from Moscow is completely unjustifiable.
Russia confirmed yesterday it has asked two of the people working at the Irish embassy to leave the country.
It's in response to Ireland expelling four senior members of Russia's delegation to Ireland.
Speaking on a trip to Finland and Estonia, Taoiseach Micheál Martin says he doesn't believe in tit for tat responses:
"Completely unjustified. The two people concerned, our diplomats, engaged in nothing other than diplomatic activities. We did expel four senior members of the Russian team in Dublin for behaviour that was not compatible with diplomatic activities. And in our view, the Russian response is unjustifiable."