Thailand has ushered in the appointment of its second interim prime minister this week, following the Constitutional Court’s suspension of the country’s leader, Paetongtarn Shinawatra, fuelled by a phone call scandal with a key Cambodian political figure.

Interior Minister Phumtham Wechayachai assumed caretaker responsibilities on Thursday, two days after Paetongtarn was banned from duties, a government statement on Thursday confirmed.

In a post on social media, the Thai government said that Phumtham’s role as acting prime minister had been agreed at the first meeting of a new cabinet, which took place shortly after ministers were sworn in by King Maha Vajiralongkorn.

The 71-year-old replaces Suriya Jungrungreangkit, who only carried out the role for one day ahead of the reshuffle.

The interim appointments occurred after Paetongtarn was temporarily barred from office earlier this week over allegations that she breached ministerial ethics in a leaked phone conversation with Cambodia’s influential former leader, Hun Sen.

The call took place in mid-June with the aim of defusing recent border tensions between the two countries following an eruption of violence that killed a Cambodian soldier.

Critics in Thailand expressed anger at Paetongtarn’s decision to call Hun Sen “Uncle” and to criticise a Thai army commander.

The Constitutional Court accepted a petition from 36 senators, which claimed that the 38-year-old had violated the constitution in her conversation with Hun Sen.

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It said there was “sufficient cause to suspect” Paetongtarn had breached ministerial ethics, with an investigation now under way into the incident.

Before her suspension began, Paetongtarn appointed herself as culture minister in the new cabinet. She was sworn in to the position at the Grand Palace on Thursday.

Paetongtarn’s government had struggled to revive a flagging economy, with an opinion poll in late June suggesting that her popularity had dropped to 9.2 percent from 30.9 percent in March.

Thailand’s political dynasty has been facing legal peril on two fronts, as a separate court hears a royal defamation suit against her father, former premier Thaksin Shinawatra.

Thaksin has denied the charges against him and repeatedly pledged allegiance to the crown.

Thaksin dodged jail and spent six months in hospital detention on medical grounds before being released on parole in February last year. The Supreme Court will this month scrutinise that hospital stay and could potentially send him back to jail.