China detains US seismologist who studied North Korean nuclear tests
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Chinese authorities detained a U.S. seismologist known for analyzing North Korean nuclear tests, Reuters reported exclusively on Monday. The scientist was taken into custody in Beijing last week, according to sources familiar with the matter. The detention has not been publicly acknowledged by either government.
The Detention
The seismologist, whose name has not been released, was detained in Beijing on July 8, according to two people with direct knowledge of the case. He had been in China for a scientific conference and was scheduled to return to the United States on July 10. The reasons for the detention remain unclear.
Background and Expertise
The researcher is a leading expert in seismic monitoring of nuclear explosions, having published multiple studies on North Korea's underground tests. His work has been cited by U.S. intelligence agencies and the Comprehensive Nuclear-Test-Ban Treaty Organization. China has previously restricted access to foreign scientists working on sensitive topics.
Diplomatic Implications
The detention comes amid heightened tensions between Washington and Beijing over technology and security issues. The U.S. State Department said it was aware of reports but declined to comment further. China's foreign ministry did not immediately respond to a request for comment.
Detainee Identity and Allegations
The detained seismologist has been identified as Chen Youlin. Chinese authorities have accused him of espionage, claiming he was funded by the Pentagon and the U.S. State Department. The detention occurred at Beijing airport, and China has stated it will not release him under pressure.
Detained Scientist Identified
The detained seismologist has been identified as Youlin Chen, a Chinese-born American citizen. He has been held for nearly two years and faces espionage charges, according to his wife, U.S. lawmakers, and hostage advocacy groups.
What's Next
The U.S. consulate in Beijing is expected to seek consular access to the detained scientist in the coming days. It remains unclear whether China will formally charge him or use the case as leverage in bilateral negotiations.
3 sources
China detains US seismologist who studied North Korean nuclear tests
