A Chinese PhD student was found guilty Wednesday in a London court of drugging and raping 10 women in England and China, as police warned there could be more than 50 other victims.

Zou Zhenhao raped three of the women in London and seven in China, and police warn there could be over 50 other victims.

Zhenhao Zou, a Chinese national pursuing PhD, was found guilty of drugging and raping 10 women in Britain. However, based on videos found at his house, authorities believe that he has more than 50 other victims,

Jurors concluded Zou Zhenhao raped three of the women in London and seven in China. The police have only been able to identify two of the 10 victims and warned more than 50 other women may have fallen victim.

Zhenhao Zou, 28, who was doing his PhD at University College London, raped three of the women in London, and seven in China.

A “persistent sexual predator” has been found guilty of drugging and raping 10 women before covertly filming them in a string of sex attacks. Zhenhao Zou, 27, had presented himself as a “smart and charming young man”,