The mayor of Pittsburgh has said he is “thrilled” at the idea of officiating at same-sex weddings, and will begin doing so in June.

Mayor Bill Peduto released a statement on Tuesday saying he would be “thrilled to make the marriage of a LGBT couple” the first one he performs as mayor.

He went on to say that he was looking forward to “being able to share that moment with many others should make for an even more joyous celebration.”

The Associated Press reports that Peduto will marry up to 20 same-sex couples on 15 June in the Pittsburgh, as part of PrideFest.

Dozens of gay and lesbian couples in the US state of Pennsylvania rushed last week to obtain marriage licences, as a judge struck down its same-sex marriage ban.

A 1996 state law defined marriage as between one man and one woman, but in a Tuesday ruling, US District Judge John Jones ruled that the ban was unconstitutional.