The protest brought together a mix of religious groups, from Protestant to Muslim, who carried anti-gay placards and chanted songs, including one in which they threatened to burn down parliament if its members make same-sex marriage legal.

A Haitian gay rights group has said it plans to submit a proposal allowing homosexuals to wed.

"I believe in God, and God condemns homosexuality," said protester Eddy Jean-Pierre, a self-described Protestant. "Haiti is not going to accept this, and God will punish us further if we allow this law to pass."

The demonstration organized by several religious groups, including one calling itself the Haitian Coalition of Religious and Moral Organizations, came two days after watchdog groups held a news conference to condemn what they say is an increase in threats against homosexuals in the country. They also took issue with plans for the Friday protest.