Thai Prime Minister Paetongtarn Shinawatra's coalition government is on the brink of collapse after her phone call with former Cambodian leader Hun Sen about a festering border dispute was leaked, BBC reported.
The leak provoked public anger and prompted a key coalition partner of the 38-year-old Paetongtarn's Peu Thai party to quit.
In the call, she addressed Hun Sen, a family friend and senior politician in the South East Asian region, as "uncle" and appeared to dismiss a Thai military commander.
"I would like to apologise for the leaked audio of my conversation with a Cambodian leader which has caused public resentment," Paetongtarn said Thursday, as the pressure on her intensified, according to BBC.