Thailand’s army is warning that it may have to“exercise the right of self-defense” in response to continuing incidents it blames on Cambodia in which Thai soldiers patrolling along the two countries’ border have been wounded by land mines.

A Thai soldier was injured by a landmine near the Cambodian border on Tuesday, the Thai army said, days after the Southeast Asian neighbours agreed to a ceasefire following last month's deadly five-day conflict.

Saturday’s incident is the third time in a few weeks that Thai soldiers have been injured by mines while patrolling along the border.