Cambodia has accused Thailand of escalating border tensions by imposing new restrictions that have blocked almost all land crossings, especially for tourists heading into Cambodia.

Thailand's military has closed border crossings into Cambodia to almost all travellers, including tourists and traders, citing security concerns as tensions between the two Southeast Asian neighbours remain escalated over a simmering border dispute.

Thailand is imposing new border restrictions including blocking tourists from entering Cambodia as the two countries engage in retaliation in their border dispute.