# China detention of US citizens on espionage > Live situation record from CLSTR: https://clstr.news/situations/detention-of-usburmese-scholar-min-zin-in-china > Updated: 2026-07-26T16:36:38.000Z. Sources: 46. Developments: 5. In early June 2026 Chinese authorities arrested Min Zin, a U.S.-born Burmese scholar, at Kunming airport on suspicion of espionage. Washington issued consular assistance, condemned the arrest and warned Americans of arbitrary detention risks in China. The case was cited by U.S. officials as part of a broader pattern of Chinese detentions used for diplomatic leverage, heightening bilateral tensions. Attention also remained on American seismologist Youlin Chen, a Chinese‑born U.S. citizen detained since 5 November 2024 after being intercepted at Beijing Capital International Airport while returning from a family visit. Chen’s research on seismic signatures of underground nuclear tests was funded by U.S. agencies, including the State Department and the Air Force Research Laboratory, and was publicly published. His wife, Yufang Rong, reports more than 100 interrogations, a 13‑month denial of legal counsel, and serious health declines—weight loss of up to 40 lb and lack of medication for diabetes, hypertension and cholesterol. She told Reuters, “I believe they will convict him no matter what and the trial will be behind closed doors.” The U.S. State Department designated Chen “wrongfully detained” in March 2025. Secretary of State Marco Rubio and former President Donald Trump raised the case with Chinese leader Xi Jinping during a May 2026 state visit, but Beijing maintains the case is handled “in accordance with the law” and has taken no steps toward release. Advocacy groups Global Reach and the Foley Foundation argue the detention is intended to harness Chen’s expertise for concealing nuclear tests. A July 2026 update confirms Chen remains in detention without trial, with no progress reported despite continued U.S. diplomatic appeals. The July 26, 2026 snapshot reiterates that Chinese officials continue to assert the case follows domestic legal procedures, while U.S. officials maintain calls for transparent due process and medical care. ## Timeline ### 2026-07-26: US Seismologist Youlin Chen Detained in China Over Espionage Allegations U.S. seismologist Youlin Chen, detained in Beijing since Nov 2024 on espionage charges tied to research on North Korean nuclear tests, has been labeled wrongfully detained by the U.S.; Trump raised the case at 2 sources. https://clstr.news/cluster/us-seismologist-youlin-chen-detained-in-china-over-espionage-allegations ### 2026-07-16: US Seismologist Chen Youlin Detained in China U.S. seismologist Chen Youlin, detained in China on espionage charges linked to research on North Korean nuclear tests, faces health concerns; the U.S. government and family urge his release, heightening U.S.–C 2 sources. https://clstr.news/cluster/us-seismologist-chen-youlin-detained-in-china ### 2026-07-13: US Seismologist Youlin Chen Detained in China Over Espionage Claims U.S. seismologist Youlin Chen has been held in China for nearly two years on espionage charges tied to his work on nuclear‑test detection; the U.S. labels him wrongfully detained, but China says legal processes 28 sources. https://clstr.news/cluster/us-seismologist-youlin-chen-detained-in-china-facing-espionage-trial ### 2026-06-15: China detains US citizen and Burmese scholar Min Zin, prompting US travel warning China detained US‑born Burmese scholar Min Zin on espionage charges, leading the US Embassy in Beijing to issue travel warnings about arbitrary detention and consular limits, heightening US‑China tensions. 2 sources. https://clstr.news/cluster/china-detains-us-citizen-and-burmese-scholar-min-zin-prompting-us-travel-warning ### 2026-06-12: US Scholar Min Zin Detained in China on Espionage Charges China says US scholar Min Zin, founder of a Myanmar think‑tank, was arrested on espionage suspicion, prompting US consular assistance and Amnesty calls for his release. 13 sources. https://clstr.news/cluster/china-detains-us-analyst-on-espionage-charges --- Cite as: China detention of US citizens on espionage. CLSTR, https://clstr.news/situations/detention-of-usburmese-scholar-min-zin-in-china