Chinese authorities have revealed that a Czech citizen is being investigated for allegedly endangering state security. The Chinese Foreign Ministry stated that the investigation is being conducted lawfully by relevant authorities. This development comes amid accusations from Beijing that the Czech Republic is detaining a Chinese journalist based on unsubstantiated claims. China is demanding the immediate release of the journalist held in Prague. The situation marks a potential escalation in tensions between China and the Czech Republic. Both countries appear to be using the detained individuals as leverage in a growing diplomatic dispute. Further details regarding the specific allegations against the Czech citizen remain undisclosed.