Jair Bolsonaro has been arrested after authorities determined he posed a definite escape threat while under domestic detention.
The ex-president was found guilty of orchestrating a government overthrow in the ninth month and given more than over two decades in prison, but he was staying under confinement pending appeals.
High Court Judge Justice Moraes said the action to imprison the 70-year-old politician was a preventative measure after "new facts" came to light.
This included trying to remove his ankle monitor and a invitation to a demonstration that could facilitate a possible escape.
In a filing authorising the arrest, the magistrate said information from the unit overseeing Bolsonaro's house arrest suggested the ex-president's aim to disable the surveillance device to secure accomplishment in his getaway".
This, it said, would be assisted by the chaos caused by the protest called by his child.
His son, Flávio, who holds office as a congressional representative, called for a assembly of his followers near Bolsonaro's home to take place on Saturday night.
Flávio Bolsonaro wrote on online platforms on the previous day: Will you battle for your homeland, or see it all from your phone there on your settee? I invite you to struggle with us."
He said the vigil would be so supporters could seek divine intervention for his health and for the reestablishment of democratic governance in our country."
Part of the judge's ruling was the potential of the former president's move to foreign missions near the dwelling, considering that the probes revealed a history of planning to ask for protection through a diplomatic representation", a statement said.
The judicial paperwork emphasizes that the US embassy in the national capital, Brazil's capital, is situated around 8 miles from the former president's residence.
The former president's legal troubles have drawn the ire of fellow conservative nationalist American leader Trump, prompting him to implement a 50% tariff on imports of Brazilian goods.
The former president is being detained in a national police facility in Brasilia and will experience a custody hearing on Sunday.
It was only on Friday that the former president's lawyers asked the High Court to authorize him to complete his entire prison term under house arrest, with electronic monitoring.
They also requested that Bolsonaro be permitted to leave his home for medical care, saying he needed ongoing care for respiratory ailments and other health problems.
He was convicted of orchestrating a conspiracy aimed at retaining his authority after he failed to win the national vote to his ideological adversary, Lula.
High Court judges said that he had knowledge of a plot which involved plans to kill Lula and his vice-presidential running mate, Geraldo Alckmin, and to detain and kill Alexandre de Moraes - the Supreme Court justice who has been managing the former president's case.
The scheme was stopped because it didn't receive the endorsement of the army and air force commanders. His successor was took office without issue on 1 January 2023.
But a week later, on the eighth of January, many Bolsonaro supporters attacked and damaged official structures in the national capital, Brazil's capital.
The security forces intervened and around 1,500 people were detained.
The judges found that the demonstrators had been provoked by him whose scheme, they said, was for the national armed forces to take action, reestablish control and reinstate his authority.
At the time, the legal team called the decades-long sentence "absurdly excessive.
He was also prohibited from running for public office until twenty-sixty - eight years later after the conclusion of his imprisonment.
The former president called the legal proceedings a targeted investigation" and said it was aimed at blocking him participating in the 2026 presidential election.
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