On 12 November 2025, the Ministry of Foreign Affairs of Thailand organized a briefing for members of the diplomatic corps and representatives of international organizations accredited to Thailand. The objective of the briefing was to provide information on the incident taking place on 10 November 2025, in which Thai soldiers stepped on anti-personnel landmines in the area of Huai Tamariya, Kantharalak District, Si Sa Ket Province, as well as Thailand’s position and actions to be taken in response to the incident.  

The briefing was chaired by H.E. Mr. Sihasak Phuangketkeow, Minister of Foreign Affairs, and attended by Mrs. Eksiri Pintaruchi, Permanent Secretary of Foreign Affairs, and Mr. Piyapak Sricharoen, Director-General of the Department of East Asian Affairs.

The Minister of Foreign Affairs stated that the recent incident involving Thai soldiers stepping on landmines represents a “major setback” to the Joint Declaration signed by the Prime Ministers of Thailand and Cambodia on 26 October 2025 in Kuala Lumpur, Malaysia, and to the efforts towards lasting peace between the two countries.

The Foreign Minister reiterated that the incident constitutes a violation of Thailand’s sovereignty and territorial integrity. He further informed that he had held discussions with H.E. Mr. Prak Sokhonn, Deputy Prime Minister and Minister of Foreign Affairs and International Cooperation of Cambodia, on 10 and 11 November 2025, to lodge Thailand’s protest over the incident. Thailand has also sent an official note to the Cambodian side and will lodge protests to the President of the Meeting of States Parties to the Anti-Personnel Mine Ban Convention (APMBC) and the Secretary-General of the United Nations. In addition, Thailand will submit explanatory notes to the United States and Malaysia, as witnesses to the signing of the Joint Declaration.

The Permanent Secretary explained that the incident resulted in injuries of four Thai soldiers, one of whom severed his right foot. The expert team discovered fragments of a PMN-2 anti-personnel mine at the explosion site, as well as three additional newly-laid and active PMN-2 mines around the crater. Since Thailand does not possess PMN-2 mines, it can be strongly suggested that these landmines were newly laid by Cambodia. 

The Permanent Secretary further stated that Thailand remains firmly committed to peace and has consistently adhered to the Joint Declaration. However, the recent landmine incident demonstrates Cambodia’s lack of sincerity, leaving Thailand with no choice but to suspend the implementation of the Joint Declaration and postpone the release of 18 prisoners of war. Thailand will nonetheless continue its unilateral efforts to conduct demining operations within its territory and to suppress online scams for the safety of Thai people. In light of this landmine incident, Thailand demands that Cambodia publicly express its apology; conduct a thorough investigation and provide a full explanation; accept full responsibility; and to take appropriate measures to prevent its recurrence in the future.

The briefing was attended by 71 foreign diplomats and representatives of international organizations in Thailand, representing 59 countries, one organization (the European Union), and four international organizations.