Several haredi MKs said Wednesday that they had received a letter threatening to rape girls in the haredi community if any marchers in the upcoming Gay Pride Parade were harmed.
"For every marcher you hurt, 10 religious girls will be raped," the letter said. "We swear to take revenge on you with the full gravity of the law. You have been warned."
The letter was signed by an unknown group calling themselves "Fighters for Light, Freedom, and Democracy, Homosexuals and Gays."
United Torah Judaism (UTJ) MK Moshe Gafni submitted a complaint to the Knesset Guard.
The parade, due to take place in Jerusalem on Friday, has been a source of violent controversy in recent weeks between the haredi community and the event's organizers, Jerusalem's Open House.
On Wednesday afternoon, the High Court was to discuss four petitions against holding the parade, submitted by Shas Chairman Eli Yishai and right-wing activist Baruch Marzel, among others.