Twitter has been accused of interference in Irish politics - after the managing director of the company's Irish operation claimed that a Yes vote would enhance Ireland's economy.

At a meeting today involving the Taoiseach and technology leaders, Twitter's Stephen McIntyre said a YES vote would show that Ireland is inclusive, and a good place for international investment:

But the Iona Institute - which opposes same-sex marriage - says the comments mark a precedent of overseas companies trying to influence Irish voters.

Ben Conroy is a spokesperson for the Institute:

But Taoiseach Enda Kenny says the status quo is locking gay people out of an institution open to everyone else: