A federal class action lawsuit challenging Georgia’s decade-old ban on same-sex marriages was filed Tuesday by a national civil rights organization.

The suit was filed by Lamda Legal, one of the primary drivers in state litigation to allow gays and lesbians to wed, on behalf of three same-sex couples and one widowed lesbian. It alleges the couples, including one who was denied a marriage license earlier this month at a Fulton County court, are being denied equal protection.

Attorney General Sam Olens said earlier this year he has a “duty to enforce … and defend” the state’s laws, but has not yet released a statement on the new challenge to the marriage ban.

The GA Voice profiled one of the couples in Tuesday’s paper, while the Atlanta Journal-Constitution briefly spotlighted a second in its own.