The Chinese government is pressing for answers after a Chinese man died hours after being taken into custody by U.S. Immigration and Customs Enforcement in a U.S. territory.
Lianyong Wei, 51, died Aug. 23 at a hospital in the Northern Mariana Islands, ICE announced in a news release Tuesday.
Wei was arrested Aug. 21 by the Northern Mariana Islands Department of Public Safety on criminal charges stemming from an alleged assault on a family of five at their home, according to ICE. He was taken into ICE custody the next day pending removal proceedings.
ICE said a guard at the lockup in Saipan found Wei unresponsive during routine morning checks on Aug. 23. He was taken to a hospital emergency room, where he was pronounced dead after “life-sustaining interventions were initiated,” the agency said, noting that the cause of his death is under investigation.
Wei entered the U.S. territory in February 2019 and was authorized to stay for two weeks, according to ICE. U.S. authorities began removal proceedings in July 2026, and Wei’s next hearing had been scheduled for this month.
The Chinese Consulate General in Los Angeles said it had been notified of Wei’s death.
“We have expressed serious concerns to the relevant U.S. authorities over this incident and required a timely and thorough investigation into the cause of Mr. Wei’s death, notification of the findings, measures to prevent any recurrence of similar incidents, and assistance to the family of the deceased in handling the aftermath,” the consulate said in a statement.
Wei is at least the fifth Chinese national who has died in the custody of ICE or the U.S. Border Patrol since March 2025, according to tracking by The Associated Press. Two of the first four deaths have been ruled suicides and the other two were the result of medical complications.
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At least 57 ICE detainees have died since President Donald Trump returned to office in January 2025, a death rate that has alarmed public health experts, advocates for immigrants and the Mexican government.
ICE hasn’t said whether Wei received the medical intake screening, which the agency promises to detainees within their first 12 hours in custody. Medical experts say a thorough screening is critical to preventing deaths.
It’s unclear why it took ICE more than a week to acknowledge Wei’s death, which was announced by authorities in the Northern Mariana Islands on Aug. 24. ICE has said it aims to issue a news release on detainee deaths within two business days.
The lockup in Saipan has held an average of 18 ICE detainees on any given day this year, according to ICE data. Roughly 50,000 people live in the Northern Mariana Islands.
“Following this incident, the Department is reviewing relevant procedures and will implement any necessary corrective actions to strengthen prevention and response measures,” Northern Mariana Islands corrections commissioner Anthony Torres said in a statement.