Thailand has suspended all actions under its ceasefire agreement with Cambodia following a landmine explosion that injured two Thai soldiers near the disputed border, Prime Minister Anutin Charnvirakul announced Monday.

Anutin said the truce will remain on hold “until Thailand’s demands are met,” citing ongoing security threats despite the recent peace accord. He did not specify what conditions Phnom Penh must fulfill before talks resume. Cambodian officials have not yet responded.

The explosion occurred in Sisaket province, where a Thai army patrol triggered a mine near the frontier. According to the Royal Thai Army, a sergeant lost his right foot, while another soldier sustained chest injuries from the blast’s shockwave. Both are being treated at a local hospital.

Defense Minister Natthaphon Narkphanit said investigators are working to determine whether the device was a remnant of previous conflicts or newly planted. He confirmed that Thailand will postpone the planned release of 18 Cambodian soldiers captured during July’s clashes — a key component of the truce agreement.

Thailand and Cambodia signed the ceasefire last month during the ASEAN summit in Malaysia, following five days of border fighting that killed dozens. The deal — brokered by Malaysia and later endorsed by former U.S. President Donald Trump — required both sides to clear landmines, withdraw heavy weapons, and exchange prisoners.

While both nations had made progress on arms withdrawal, Thai officials accuse Cambodia of deliberately obstructing mine clearance and planting new explosives in violation of the pact. Cambodia has denied the allegations, saying it remains fully committed to the agreement and urging Bangkok to release the detained soldiers as promised.

Monday’s blast has reignited tensions along one of Southeast Asia’s most volatile borders, raising fresh doubts about the durability of the Trump-era truce and the region’s broader peace process.