Peruvian presidential candidate Keiko Fujimori on Saturday said she trusts she will not be sent back to prison after a judge reviews her freedom in a money laundering case and insisted that fraud was committed by her rival in a recent election she narrowly trails.

With all the votes tallied from last Sunday’s presidential runoff, the leftist Pedro Castillo had 50.2% support against 49.8% for the conservative Fujimori. But electoral authorities said they are scrutinizing a small number of ballots amid unproven fraud claims and an official winner might not be announced for a week.

Amid the uncertainty, Peruvian prosecutor José Domingo Pérez has asked a judge to return Fujimori to prison for failing to abide by the terms of her release granted a year and a half ago. He contends she spoke to an investigation witness who is also a spokesperson for her campaign.

Supporters of presidential candidate Keiko Fujimori gather to protest alleged election fraud in Lima, Peru, Saturday, June 12, 2021.  Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoMartin Mejia)

Supporters of presidential candidate Keiko Fujimori gather to protest alleged election fraud in Lima, Peru, Saturday, June 12, 2021. Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoMartin Mejia)

Fujimori was released after spending more than a year in jail as part of a probe into millions of dollars in illegal campaign contributions she allegedly received from the Brazilian construction company Odebrecht. She denies the accusations.

“I trust that the judiciary will not accept the argument for preventive detention made by prosecutor Pérez,” Fujimori said in a press conference Saturday.

On Wednesday, she said she would seek to annul 200,000 votes for Castillo, who leads the count by just over 50,000 votes. Her campaign has yet to substantiate the claims of fraud.

A supporter of presidential candidate Keiko Fujimori waves banners during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021.  Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)

A supporter of presidential candidate Keiko Fujimori waves banners during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021. Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)

Castillo is a former rural schoolteacher and an outsider who many feared would upend Peru’s free-market model largely based on mineral exports. Fujimori is fighting allegations of corruption that could land her in jail alongside her father, former President Alberto Fujimori.

In March, Pérez asked for 30 years in prison for Keiko Fujimori, along with sentences for her husband and 38 other people.

“It is an absurd argument as my lawyer has explained,” said Fujimori. The judge’s decision comes on June 21.

A supporter of presidential candidate Keiko Fujimori holds up a sign that reads in Spanish: "Resist Peru" during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021.  Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)

A supporter of presidential candidate Keiko Fujimori holds up a sign that reads in Spanish: "Resist Peru" during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021. Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)

Both sides supporters have held rallies in Lima in recent days.

If electoral authorities agree with Fujimori’s bid to annul the votes, she would not only win the presidential election but also be able to freeze her corruption trial for five years. It would also allow her to fulfill her campaign promise of freeing her father, who is imprisoned for three corruption convictions and another conviction related to the killing of 25 Peruvians during his 1990-2000 government.

A supporter of presidential candidate Keiko Fujimori holds up a sign with a message that reads in Spanish: "My family says, No to Communism" during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021.  Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)

A supporter of presidential candidate Keiko Fujimori holds up a sign with a message that reads in Spanish: "My family says, No to Communism" during a protest against alleged election fraud, in Lima, Peru, Saturday, June 12, 2021. Supporters are hoping to reverse the results of the June 6th presidential runoff election that seem to have given the win to opponent Pedro Castillo amid unproven claims of possible vote tampering. (AP PhotoGuadalupe Pardo)