Police in Zhejiang province have arrested more than 200 people in what they believe to be the largest ever crackdown in China’s war against pornography, The Paper reported Wednesday.

The suspects were involved in a cross-border gang and offered over 100 online erotic livestreaming channels to more than 3.5 million paid subscribers. Police said the group operated through overseas servers and generated 250 million yuan ($36 million) in revenues since it began streaming in August 2017.

Chinese authorities have been on a mission to “clean the web,” eradicating any content deemed offensive. Last year, the anti-pornography office shut over 6,000 websites and WeChat accounts hosting pornographic content and deleted 4.5 million erotic posts online, according to Xinhua. (Image: VCG)