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,

A student has been found guilty of drugging and raping 10 women in the UK and China over a four-year period. Zhenhao Zou, 28, filmed himself sexually assaulting nine of his victims and kept the videos as souvenirs. Only two have been identified.

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.

A Chinese PhD student has been convicted of drugging and raping 10 women. Zhenhao Zou, 28, was found guilty of the attacks after a month-long trial at Inner London Crown Court. He was convicted on Wednesday of the harrowing attacks involving two women who have been identified and another eight who have yet to be traced.