Bangkok, August 9 – The Thai army announced today that three of its soldiers were injured by a landmine explosion near the disputed border with Cambodia, in an incident threatening the fragile ceasefire agreement between the two countries. The Thai army spokesperson Wintai Suvari stated that the explosion occurred while soldiers were patrolling the Si Sa Ket border province, resulting in one soldier seriously wounded in the leg and two others with minor injuries. The Thai army accused Cambodian forces of “secret use of weapons,” considering the incident a “serious obstacle” to peace efforts. Meanwhile, the Thai Ministry of Foreign Affairs announced its intention to file an official protest against Cambodia for violating the Ottawa Treaty banning anti-personnel mines. This incident comes just days after the two countries signed a 13-point peace document in Malaysia last Thursday, following armed clashes last month that killed dozens and displaced more than 260,000 civilians.