In a rare example of public dissent, some Facebook employees are taking to Twitter to express strong disagreements with CEO Mark Zuckerberg’s decision not to take any action on a series of controversial posts last week from President Donald Trump, including an apparent threat that “looting” would lead to “shooting.”

Jason Stirman, a design manager at Facebook, said he disagreed with Zuckerberg’s decision to do “nothing” about Trump’s recent posts. “I’m not alone inside of FB. There isn’t a neutral position on racism,” he wrote in a tweet on Saturday.

“Giving a platform to incite violence and spread disinformation is unacceptable, regardless who you are or if it’s newsworthy,” Andrew Crow, head of design for Facebook’s Portal devices, tweeted over the weekend. “I disagree with Mark’s position and will work to make change happen.”