Guatemala's chief public prosecutor said Wednesday she is confident embattled President Otto Pérez Molina will be convicted of corruption, as the country's top court rejected a legal challenge by the president's attorneys to the stripping of his immunity.

Otto Pérez Molina, a 64-year-old retired general, is the first president to have his immunity revoked in the Central American country's history.

Guatemala's Congress will debate Tuesday whether to strip embattled President Otto Pérez Molina of his immunity and force him to face prosecution over massive corruption at the national customs service.

The conservative president has faced mounting calls for his resignation since U.N. investigators accused him of running a massive fraud scheme at the national customs service, a scandal that has already felled his former vice president and caused nearly half his Cabinet to resign.

A special congressional commission on Saturday recommended the removal of Guatemalan President Otto Pérez Molina's immunity from criminal prosecution due to his alleged involvement in a massive customs fraud case that has brought the administration to the brink of collapse.

Telecom tycoon Mario López Estrada “is the most powerful actor that could have supported [Otto Pérez Molina] at the moment,” Nómada Director Martín Rodríguez tells The Tico Times. “That’s why he refuses to step down and is being so confrontational.” Meanwhile, Guatemalans call for a boycott of Tigo. And the plot thickens...

Even some fast-food restaurants joined in Thursday's nationwide protests held to demand President Otto Pérez Molina's resignation. "All our restaurants will remain closed. We are joining in the change reshaping our country," said a message posted to the Twitter account of McDonald's Guatemala.

GUATEMALA CITY – In a pre-recorded message broadcast to the nation last night, Guatemalan President Otto Pérez Molina refused to step down in the face of growing evidence of his likely involvement in a massive customs fraud network known as “La Línea.”

With stunning landscapes, history and unique opportunities to interact with living Mayan cultures, Lake Atitlán is a special place.

President Otto Pérez Molina’s future is in the hands of five congressmen after the Supreme Court gave the legislature the green light to decide whether he should be stripped of his prosecutorial immunity so that he can be tried for corruption charges.