LA PAZ: Former Bolivian president Jeanine Anez said Sunday she had been sentenced to four months pre-trial detention after she was arrested on charges linked to the ousting of her predecessor Evo Morales in what he claims was a coup d'etat.

Anez -- who was arrested on Saturday on terrorism, sedition and conspiracy charges -- tweeted as opposition groups called for protests against the moves widely denounced as political score-settling.

"They are sending me to detention for four months to await a trial for a 'coup' that never happened," she wrote, after hearing the order from Judge Regina Santa Cruz in a virtual hearing.

In an indictment seen by AFP, prosecutors had originally asked for Anez, 53, and two ministers in her year-long caretaker government to be held for six months as a "precautionary" measure.

Anez, who will be transferred to a women's prison in La Paz, added in her tweet: "From here I call on Bolivia to have faith and hope. One day, together, we will build a better Bolivia."

Earlier she told reporters that rule of law was being "undermined" and that Bolivia could become a "no man's land."

As the most senior parliamentarian left after Morales and his allies fled the country in November 2019 following weeks of demonstrations over disputed elections, rightist conservative Anez took over as caretaker president.

Her arrest came months after Morales returned to Bolivia from exile on the back of a fresh election victory in October 2020 for the leftist Movement for Socialism (MAS) party he founded.

The presidency and congress are now back under the control of MAS.

Anez claimed political persecution as the UN, European Union and United States called for due process to be respected.