Thailand’s Constitutional Court has dismissed Prime Minister Paetongtarn Shinawatra over a leaked phone call with former Cambodian leader Hun Sen, BBC reported.

In the call, she criticized the Thai army and appeared conciliatory toward Hun Sen during a border dispute, sparking a backlash at home. Though Paetongtarn apologized and described it as a negotiating tactic, senators pushed for her removal.

According to BBC, the ruling is a major setback for the powerful Shinawatra political dynasty and makes her the fifth Thai leader since 2008 to be ousted by the court, deepening political uncertainty in the country.