The Chinese government claims to guarantee religious freedom to its citizens, but evidence continues to mount that President Xi Jinping is carrying out the greatest persecution of Christians in the country since the days of Mao Zedong.

A new report from the Associated Press shows the Chinese government is increasingly hostile to Christians even as it cracks down on other religious groups across the nation. With an officially atheist government that wrote religious freedom into its constitution in 1982, China has long had an uneasy relationship with religious believers, but Xi is now implementing a five-year plan to “Sinicize” Christian churches.

“Siniciziation” has traditionally been used to describe local adoption of religions imported from foreign regions, but under Xi the term has gained new meaning. Xi’s guidance demands China “actively guide religions to adapt to the socialist society,” according to The Diplomat.