Minnesota Attorney General Keith Ellison announced Tuesday that his office is investigating a private security company that has been accused of recruiting armed security guards for Election Day, saying that such an effort would intimidate voters.

The security company, Atlas Aegis, is accused of posting since-deleted advertisements on Facebook for U.S. military Specials Operations personnel to guard polling sites in Minnesota, according to the lawsuit. While the investigation is ongoing, Ellison has requested that Atlas Aegis "cease and desist any planning and stop making any statements about engaging in this activity."