Police continue to maintain strict control over Ming Chen Sun, a Chinese man known as Ah Tee C4, who was found hiding a weapons cache while receiving hospital treatment. The latest condition report states he is conscious and able to follow medical instructions but still requires a ventilator. Blue fluid was detected during gastric lavage, with initial suspicion pointing to a drug overdose.
Updates on the national security case involving Ming Chen Sun, a 31-year-old Chinese national who was involved in a car accident in Chonburi province. Police subsequently searched his luxury residence in Pattaya city and discovered a large arsenal, including C4 explosives, two M4 assault rifles, and hidden fragmentation grenades, as previously reported.
On 13 May 2026, reporters from Pattaya Pattamakun Hospital in Bang Lamung district, Chonburi province, reported that Ming Chen Sun, a 31-year-old Chinese national and detainee awaiting trial for firearms and explosives offenses, developed an emergency medical condition and has been receiving treatment since 11 May 2026. Security personnel, including police and prison officers, have maintained strict control from the hospital's lower floors up to the second floor.
Doctors at Pattaya Pattamakun Hospital explained to prison authorities the medical timeline. Upon Ming Chen Sun's arrival at the hospital on 11 May 2026, doctors conducted blood tests, chest X-rays, and a brain CT scan to detect any abnormalities. The initial diagnosis was that the detainee had overdosed on his regular medication. Doctors performed gastric lavage via a nasal tube and discovered blue fluid. They administered an antidote injection, which helped the detainee begin moving and respond more positively.
As of 12 May 2026, the detainee is conscious and able to follow medical orders but still requires ventilator support and cannot be removed from it yet. Nutrition is being provided through liquid feeding via a nasal tube.
Laboratory test results showed negative urine drug screening for all substances. The hospital has sent blood samples for detailed lab analysis to detect substances such as alcohol, benzodiazepines, and pesticides. Official results are expected by Friday or next week.