Sinn Féin has confirmed it will be putting up posters during the referendum campaign on the Eighth Amendment.
The party supports repealing the Eighth Amendment, which acknowledges the equal right to life of the unborn and the mother.
The party is to hold an Ard Fheis after the referendum, which is set for Friday 25 May, to decide party policy on allowing terminations up to 12 weeks.
Sinn Féin leader Mary Lou McDonald said the party will fight a vigorous campaign to have the Eighth Amendment removed from the Constitution and is also participating in the Together for Yes campaign.
Last week Fianna Fáil confirmed that it would not be putting up posters during the referendum campaign and will not be supporting either side.
However, the party's TDs, senators and members are free to express support for either side of the campaign.
Fine Gael also confirmed last week that it will not be putting up its own posters, but it will be supporting the Together for Yes poster campaign.
The Labour Party has already launched its poster campaign in support of repealing the Eighth.
.@SocDems will be launching its poster campaign this weekend for the #8thref @CathMurphyTD says the bigger parties should show leadership during the campaign @rtenews @rtepolitics pic.twitter.com/u1y4LEetft— Martina Fitzgerald (@MartinaFitzg) April 17, 2018