Thailand’s Prime Minister Paetongtarn Shinawatra has apologized for the political turbulence set off by a leaked recording of her negotiating with Cambodia’s former leader in the two nations' latest border dispute.

Thailand's Ministry of Foreign Affairs announced Thursday that it will hand a letter of protest to Cambodia's government after a call between the two countries was allegedly leaked by a high-profile Cambodian official.

Thai Prime Minister Paetongtarn Shinawatra's coalition government is on the brink of collapse after a phone call between her and former Cambodian leader Hun Sen about a festering border dispute was leaked.