A Supreme Court judge on Tuesday blocked a lower court ruling allowing same-sex couples to marry in the United States.
The ruling, which came just hours after the US Justice Department filed a notice of appeal, means same-gender couples can now marry in Oregon and Washington.
The lower court ruled in April that the state could not issue licenses to same-day marriages, which are required under federal law.
Same-sex marriage is legal in the District of Columbia.
In his decision, Justice Ruth Bader Ginsburg said the states are not required to recognize marriages between same- and opposite-sex people.
The court will hear oral arguments in the case, which was brought by the American Civil Liberties Union of Oregon and two of its members.
It will be heard by a three-judge panel of the U.S. Court of Appeals for the District, which covers the nation’s capital.
The decision was the latest blow to gay marriage, which remains on the legal margins in the US.
A similar ruling by the US Court of Appeal for the Seventh Circuit in February made same- sex couples eligible to marry across the country.