Google employees are up in arms after a senior engineer at the company penned an anti-diversity manifesto that has spread through the company like wildfire. 

The manifesto apparently argued that Google should halt initiatives aimed at increasing gender and racial diversity within the company and instead focus on “ideological diversity,” according to a report by Vice’s Motherboard, which first reported the news late on Friday. The document also reportedly argued that biological difference between men and women are responsible for the underrepresentation of women in the tech industry.

News of the document has sparked widespread outrage on the internet, including by several Google employees who took to Twitter to denounce it.