A coalition of lawmakers are expected to introduce a bill this week which seeks to legalize marriage for gay and lesbian couples in Chile.

The lawmakers said that they would introduce the bill on Wednesday, December 10.

The bill seeks to alter the definition of marriage in Chile's Civil Marriage Act from “between a man and a woman” to “between two people.”

Deputy Gabriel Silber, a Christian Democrat, said “equal relationships, must have equal rights, there is no reason for first and second-class citizens.”

Silber added that he hopes the government will back the proposal.

President Michelle Bachelet endorsed marriage equality during her campaign and pledged to open a discussion on the subject.

However, a bill which proposes recognizing gay couples with civil unions cleared the Senate in October.