Chinese Man Found with 3.6kg of C4 Explosives in Thailand, Queries AI about Blast Effects

Thailand’s Chonburi Province has reported a major national security threat. A 31-year-old Chinese national, Sun, holding a “Thailand Elite Visa,” recently became the focus of police attention after a car accident exposed a stockpile of military weapons hidden in his vehicle. This quickly triggered a large-scale police search of his residence, where authorities uncovered an M4 assault rifle, military-grade ammunition, and a large amount of remotely detonable C4 explosives—shocking officials at the highest levels.

Thai Prime Minister Anutin has already ordered police to accelerate their investigation into all individuals connected to the case. The incident has been classified as a national security matter.

According to Thai headlines news agencies, on the 8th, police discovered that Sun had hidden a large number of weapons of war and C4 explosives in his downtown Chonburi home. Thai bomb disposal police subsequently defused the explosive devices.

It is reported that police seized 4 Russian POMZ2 anti-personnel grenades, 1 K75 anti-personnel grenade, 4 “corn cob-type” booby-trap explosive devices, 1 anti-personnel explosive, 3 explosive detonators, 1 box of C4 explosives (weighing 2,486.4 grams), 2 strips of C4 explosives (total weight 1,173 grams), 2 M4 assault rifles, 1 handgun, a large amount of ammunition of various specifications, and several liters of gasoline. Most of the assault rifle bullets are standard issue to the Thai military, as indicated by their green markings.

The police are still investigating the specific source of the explosives. Some of the devices, especially the C4 explosives, were found to have been modified by the suspect himself and connected to a bulletproof vest, capable of remote detonation.

Police found in the suspect’s phone chat records with the AI application ChatGPT that he had asked the AI about the destructive effects of a C4 explosion. Authorities suspect he may have been plotting a car bomb or some form of terrorist attack, as mobile phone evidence shows that the suspect has participated in firearms and explosives training with Cambodian special forces. Police are currently conducting a thorough investigation into his associated network.

Holder of a Dominica Passport

Moreover, upon reviewing the suspect’s entry and exit records, authorities found that between 2022 and 2026, he had traveled dozens of times between Thailand and Cambodia, holding a long-term “Thailand Elite Visa.” Police also confirmed he possesses a “non-Thai national ID card” (pink card) and a Dominica passport.

Currently, police are investigating his identity status, sources of funds, and cross-border links in detail.

Police also revealed that the suspect submitted medical documentation claiming to suffer from depression, but authorities are not fully convinced and further assessment will be conducted by a psychiatrist.