Thailand’s Prime Minister Paetongtarn Shinawatra has visited the border with Cambodia as she faced resignation calls following a leaked phone call between her and Cambodia’s former leader discussing recent border tensions.

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.

Thailand’s government faces potential collapse after Prime Minister Paetongtarn Shinawatra’s leaked phone call unleashed fresh political turmoil, with the leader now facing calls to resign as she grapples with the exit of the second-biggest party in her coalition.