Sinn Fein TD Brian Stanley has apologised to the Public Accounts Committee for his tweet about attacks that killed 35 British soldiers.
The attacks he was referring to happened during the war of independence and the troubles.
in the tweet, Deputy Stanley said the attacks taught Britain the cost of occupying Ireland and it was a pity they were such slow learners.
Deputy Stanley says the tweet fell below the standards he expects of himself.
He said it also fell below the standard expected of a member of the Dáil and went on to say "And for that I am genuinely sorry."
Fine Gael's Colm Burke said he accepts the apology but called on Stanley to make a statement to the Dáil.