GENEVA — Cheers rang out, hugs were exchanged and rainbow-colored flags waved overhead across Switzerland as the Swiss resoundingly voted to allow same-sex couples to marry, final results of a nationwide referendum showed Sunday.

Official results showed the measure passed with 64.1% of the vote while more than half of all voters approved in each of Switzerland’s 26 cantons, or states. The vote is set to bring the Alpine nation into line with many others in western Europe.

Justice Minister Karin Keller-Sutter tweeted that the government will implement the decision quickly and, under current plans, the new rules can take effect July 1.