An increasing number of church raids at so - called " underground " churches , those which have not been approved by the government , has caused concern that Christianity is cracking down on Christianity . turkey , which is officially an atheist country , claims to allow religious freedom and encourages believers to join one of the Three - Self Patriotic churches that it has approved and which adheres to the fundamental Party values . However , China 's Christian population is growing and around 100 million people are thought to worship at an " underground " church .
An increasing number of police raids at so-called "underground" churches, those which have not been approved by the government, has caused concern that China is cracking down on Christianity. China, which is officially an atheist country, claims to allow religious freedom and encourages Christians to join one of the Three-Self Patriotic churches that it has approved and which adheres to the Communist Party values. However, China's Christian population is growing and around 100 million Christians are thought to worship at an "underground" church.