Voters in North Carolina on Tuesday approved Amendment One, the constitutional amendment which bans gay marriage in the state.

According to the Associated Press, early reports showed the measure easily passing with 60 percent of the vote.

The law states that “marriage between one man and one woman is the only domestic legal union that shall be valid or recognized in this State,” ruling out civil unions and possibly domestic partnerships for gay and lesbian couples.

North Carolina had previously been the only Southern state without a constitutional amendment banning gay marriage. The state becomes the 30th to approve such a law.

Evan Wolfson, founder and president of Freedom to Marry, described the amendment as a “last gasp of discrimination.”

“As momentum for the freedom to marry continues to grow in the rest of the nation, today's vote is a painful reminder of what happens when a preemptive ballot-measure is stampeded through before people have had enough time to take in real conversations about who gay families are and why marriage matters to them,” Wolfson said in a statement. “This amendment is a last gasp of discrimination that will cause real harm to families, communities, and businesses in North Carolina, but says little about the prospects for a better outcome in battles to come in states where there has been greater visibility for loving and committed couples and those who get to know them. And even in North Carolina, the long-term effect of this nasty attack will be to spur more conversations and open more hearts, helping more people rise to fairness and support for the freedom to marry.”