Hundreds of Google employees have written to the company to protest against plans to launch a "censored search engine" in China.
Google, which has never spoken publicly about the plans, declined to comment
reports last month claimed it had been secretively working on a new Chinese search service, referred to internally as Dragonfly.
The platform, which still requires Chinese government approval, would block certain websites and search terms like human rights and religion.
In their letter, which was shared with various media organisations, they also argue it would violate the "don't be evil" clause in Google's code of conduct."We urgently need more transparency, a seat at the table, and a commitment to clear and open processes: Google employees need to know what we're building," the letter said
In April, thousands of staff criticised its work on a US military programme developing artificial intelligence for drones. Google has since ended its AI contract with the Pentagon.