DUP leader Arlene Foster said it was a «sad day» and that the change in abortion law was «an affront to human dignity and life».
Pro-choice campaigners in Northern Ireland have celebrated «an historic moment», as abortion and same-sex marriage become legal for the first time.
Grainne Teggert, from Amnesty UK, told Sky News: «It marks the end of inequality both for same sex couples who have long wanted to marry the person they love, and also for women who have been suffering at the hands of our abortion ban».
