The anti-child slavery activist Tim Ballard, whose work was dramatized in the movie Sound of Freedom, resigned from the Operation Underground Railroad (Our) organization he founded amid allegations he sexually harassed colleagues, it was reported on Monday.

Ballard, a former adviser to the Trump administration on child sexual trafficking, who is reported to be exploring a run for a US Senate seat in Utah, resigned abruptly from the group in June for then-unknown reasons.

But the online media outlet Vice reported on Monday that the ultra-conservative figure, an alleged QAnon conspiracy theorist, resigned after Our launched a sexual misconduct investigation against him involving at least seven women.