While final results are not yet known early polls show that Ireland has voted in favor of same-sex marriage. The measure was on the ballot in a landmark referendum.
If the measure passes, it would make Ireland the first in the world to legalize same-sex marriage through voting.
According to Irish TV broadcaster RTE, turnout for the vote was above 60% in some parts of the country, considerably higher than in other referendums.
Based on exit polls and voter turnout data there was speculation that opposition to the measure might have been understated because, amid the heated debate, people hadn't been publicly saying they would vote yes.
Labour lawmaker Kevin Humphreys, Ireland's Minister of State for Employment, Community and Social Support, said that vote totals in Dublin on a "historic day" showed the "yes" vote was "big and fat."