Icelandic Prime Minister Johanna Sigurdardottir has married her long-term partner, her office said on Monday, making her the world's first national leader with a same-sex spouse.
Sigurdardottir, 67, married writer Jonina Leosdottir on Sunday, the day a new law took effect defining marriage as a union between two consenting adults regardless of sex.
The two had had a civil union for years and changed this into a marriage under the new law, which was approved by parliament earlier this month.
The new law was celebrated at a church service on Sunday, which was also the international day for homosexual rights.
The prime minister's office said Sigurdardottir had sent a message to the gathering saying the new law was a cause for celebration for all Icelanders and adding: "I have today taken advantage of this new legislation."
The Lutheran State Church has long been split on the issue of same-sex marriage and the church congress in April did not unanimously support the new legislation. The bishop of Iceland has urged parish ministers to comply with the law.
Sigurdardottir, who has children from a previous heterosexual marriage, is the world's only openly gay prime minister but her sexuality has never been an issue in Iceland, which, like the other Nordic states, has a history of tolerance.