Chilean President Michelle Bachelet has introduced a bill to legalise gay marriage, the latest in a series of recent reforms in a country long regarded as one of Latin America’s most socially conservative.

Bachelet signed the proposal, which will be sent to lawmakers, at a ceremony in the presidential palace. She said the measure seeks to expand the definition of marriage between a man and a woman and would also expand rights for gay couples, allowing them to adopt children.

“We can’t let old prejudices be stronger than love,” Bachelet said.