Thailand’s Constitutional Court has suspended Prime Minister Paetongtarn Shinawatra from office pending an investigation over a leaked phone call with a former Cambodian leader.

Paetongtarn Shinawatra, Thailand’s youngest prime minister and scion to the country’s most prominent political dynasty, may lose power barely a year after taking the top political office.

Paetongtarn Shinawatra is accused of ethical lapses in a conversation with the Cambodian leader Hun Sen and has faced calls to resign.