A group of more than 200 mayors in the US has urged federal courts, including the Supreme Court, to allow all gay couples the right to marry across the US.

The resolution was passed at the four-day US Conference of Mayors which took place in Dallas, ending Monday. It urges courts to support allowing all same-sex couples to marry.

The conference also supported the right of gay and lesbian couples to marry in 2009.

Monday’s vote reaffirmed that commitment, noting that 19 states and the District of Columbia currently allow same-sex couples to marry.

As well as supporting same-sex marriage, the conference also condemned legislation which would allow discrimination against LGBT people.

During the conference, the mayor of Louisville, Kentucky, officially came out in support of same-sex marriage.

At the US Conference of Mayors meeting in Dallas, Texas on Friday, Greg Fischer joined the almost 500 members of Mayors for the Freedom to Marry.

The mayor of the city of Pittsburgh last weekend officiated at the weddings of 19 couples.