Twitter has locked the account of China’s US embassy for a tweet that defended China’s policy towards Muslim Uighurs in Xinjiang, which the US social media platform said violated its stand against “dehumanizing” people, Reuters reported.

The Chinese Embassy account, @ChineseEmbinUS, posted a tweet this month that said that Uighur women had been emancipated and were no longer “baby-making machines,” citing a study reported by state-backed newspaper China Daily.

“We’ve taken action on the Tweet you referenced for violating our policy against dehumanization, where it states: We prohibit the dehumanization of a group of people based on their religion, caste, age, disability, serious disease, national origin, race, or ethnicity,” a Twitter spokesperson said on Thursday.

The tweet was removed by Twitter and replaced by a label stating that it was no longer available. Although Twitter hides tweets that violate its policies, it requires account owners to manually delete such posts. The Chinese embassy’s account has not posted any new tweets since January 9.