Thailand’s army on Monday (December 29, 2025) accused Cambodia of violating a newly signed ceasefire agreement, reached after weeks of deadly border clashes, by flying more than 250 drones over its territory.

The Thailand army said “more than 250 unmanned aerial vehicles (UAVs) were detected flying from the Cambodian side, intruding into Thailand’s sovereign territory” on Sunday (December 28, 2025) night, according to a statement.

“Such actions constitute provocation and a violation of measures aimed at reducing tensions, which are inconsistent with the Joint Statement agreed” during a bilateral border committee meeting on Saturday (December 27, 2025), it added.

Cambodian Foreign Minister Prak Sokhonn said in remarks aired on state television on Monday that the two sides had discussed the incident and agreed to investigate and “resolve it immediately”.

Mr. Prak Sokhonn described it as “a small issue related to flying drones seen by both sides along the border line”.

Thailand and Cambodia agreed to the “immediate” ceasefire on Saturday (December 27, 2025), pledging to end renewed border clashes that killed dozens of people and displaced more than a million this month.

The reignited fighting spread to nearly every border province on both sides, shattering an earlier truce for which US President Donald Trump took credit.

Under the agreement signed on Saturday (December 27, 2025), the Southeast Asian neighbours agreed to cease fire, freeze troop movements and cooperate on demining efforts and combatting cybercrime.

Thailand and Cambodia ​agreed on Saturday (December 27, 2025) to halt ‌weeks of fierce ​border clashes, the worst fighting in years between the Southeast Asian countries that has included fighter jets sorties, exchange of rocket fire and artillery barrages.

“Both sides ​agree to maintain current ⁠troop deployments without further movement,” their Defence Ministers said in a joint statement ​on the ceasefire, ⁠to take effect at noon (0500 GMT).

“Any reinforcement would heighten tensions and negatively affect long-term efforts ‌to resolve the situation,” ‌according to the statement released on social media by ‍Cambodia’s Defence Ministry.

The agreement, signed by Thai Defence Minister Natthaphon Nakrphanit ‍and his Cambodian counterpart Tea Seiha, ended 20 days of fighting that has killed at least 101 people and displaced more than half a million on both sides.

The clashes ⁠were re-ignited in early December after a breakdown in ​a ceasefire that U.S. President ⁠Donald Trump had helped broker to halt a previous round of fighting in July.