Thailand has halted the implementation of its ceasefire agreement with Cambodia after a landmine blast along the shared border wounded several Thai soldiers, reigniting long-standing tensions between the two neighbours.

The explosion occurred during a routine patrol in Sisaket province, an area where both countries have accused each other of encroachment and of failing to honour past de-escalation commitments.

Thai officials say the device was newly laid and therefore constitutes a breach of the ceasefire terms.

Cambodia has rejected the allegation, arguing that the blast was caused by old, uncleared mines dating back to previous conflicts.

The truce, signed earlier this year, was designed to stabilise a historically volatile frontier marked by overlapping territorial claims and recurring armed clashes.

It included provisions for the withdrawal of heavy weapons, the establishment of communication hotlines and joint steps toward mine-clearance operations.

The suspension now places all these measures on hold.

Thailand has also paused the planned release of detained Cambodian soldiers captured during previous skirmishes.

Bangkok’s decision reflects growing mistrust at a moment when both countries were under pressure to demonstrate restraint and rebuild confidence following months of intermittent clashes.

Defence officials in Thailand argue that renewed hostilities cannot be ruled out until there is credible assurance that the border area will not be re-mined.

Cambodia insists it remains committed to peaceful dialogue and says technical discussions should resume before further escalation.

Regional observers warn that the abrupt halt to the ceasefire risks undoing fragile progress in one of Southeast Asia’s most sensitive border disputes.

Without verification mechanisms or third-party monitoring, the conflict zone remains vulnerable to renewed confrontation.

Communities living near the frontier are now bracing for heightened military activity as diplomatic ties enter a new period of uncertainty.