Moldova's president has appointed the country's pro-European foreign minister as interim prime minister after her predecessor resigned amid a probe of his high school diploma.

Nicolae Timofte named 46-year-old Natalia Gherman, who has been foreign minister since 2013, as the interim prime minister Monday.

Chiril Gaburici resigned from the prime minister post this month after prosecutors questioned him about the authenticity of his high-school diploma and university degree.

Moldova has until Sept. 12 to find a new government and negotiations will begin next week. The country will also hold runoffs in local elections on June 28 — seen as a test of whether Moldovans want to pursue European Union membership or return to Russia's orbit.

Separately, Moldovan officials are investigating the disappearance of $1.5 billion from state-owned and private banks.