Facebook’s Mark Zuckerberg on Wednesday vowed to remove violent threats and posts celebrating hate crimes from the social network, as more and more technology companies seek to crack down on white supremacists in the wake of Charlottesville. Commenting on the white nationalist rally that left one woman dead and 19 injured last Saturday, Zuckerberg said the events were “hard to process.” “It’s a disgrace that we still need to say that neo-Nazis and white supremacists are wrong—as if this is somehow not obvious,” he wrote on Facebook. “With the potential for more rallies, we’re watching the situation closely and will take down threats of physical harm. We won’t always be perfect, but you have my commitment that we’ll keep working to make Facebook a place where everyone can feel safe,” he said. His comments came after Facebook banned the accounts of white supremacist Christopher Cantwell, who gained the spotlight after promoting violence in comments to a Vice reporter covering the Charlottesville rally.