GUATEMALA CITY (AP) — Guatemala’s prosecutor for electoral crimes has asked the Supreme Court of Justice to strip five magistrates of the country’s top electoral authority of their immunity so they can be investigated on fraud allegations made by the loser of the Aug. 20 presidential election.

It is the latest example of elections that observers declared to be free and fair being dragged into the courts, even as President-elect Bernardo Arévalo begins the official transition with outgoing President Alejandro Giammattei.

The National Unity of Hope party of former first lady Sandra Torres filed a fraud complaint after the election. The party’s lawyer Carlos López said 164 precinct tallies duplicated votes. The party wants the magistrates of the Supreme Electoral Tribunal investigated for allegedly not carrying out their duties.

On Monday, Arévalo and Giammattei had their first transition meeting with Organization of American States Secretary General Luis Almagro present. Giammattei made his most direct comments since the election, saying “Dr. Arévalo will be the next president for the Seed party that won the elections.”

Arévalo previously had accused forces in Giammattei’s government of attempting a coup d’etat to keep him from taking power. The leader of the Organization of American States’ electoral observation mission had said legal efforts since the election appeared to be aimed at keeping Arévalo from assuming the presidency.

Over the weekend, the Supreme Electoral Tribunal blocked the suspension of Arévalo’s Seed Movement party, which had come at the request of prosecutors. They allege that there was wrongdoing in the collection of the required signatures years earlier to register the party, something Arévalo himself had reported to authorities before the election.