Hundreds of people began registering their marriages at a mall in Bangkok, as Thailand became one of the few places in Asia to legalize same-sex unions.

Thailand on Thursday became the first country in Southeast Asia to hold legal same-sex weddings, with LGBT groups aiming to mark the occasion with more than 1,000 marriage registrations in a single day.

Weddings took place across the country, including at a Bangkok mall, as same-sex marriage became legal. Thailand is one of the few places in Asia where it’s allowed.