A Bolivian judge on Friday sentenced right-wing opposition leader Luis Fernando Camacho to four months in pre-trial detention following his arrest on charges of "terrorism".

Judge Sergio Pacheco ordered that the former presidential candidate be held at the maximum security prison of Chonchocoro in La Paz.

Camacho, the right-wing governor of the country's economic powerhouse region of Santa Cruz, was arrested on Wednesday on "terrorism charges", including for an alleged role in the pressured resignation of leftist president Evo Morales in 2019.

The prosecution on Thursday had sought six months in detention for Camacho, whose arrest sparked clashes between demonstrators and police in the regional capital Santa Cruz, the most populous city in Bolivia.

Camacho had been under investigation for his role in strikes and sometimes violent protests in 2019, prompted by Morales' election to a fourth term. The leftist President resigned after a US-led coup by the right-wing opposition.

Camacho has repeatedly denied having fomented a coup against Morales.

The right-wing leader, who leads the second-largest opposition bloc in parliament, came in third in presidential elections in October 2020 that were won by leftist Luis Arce.

The charges echoed the arrest and trial of former President Jeanine Anez, who was detained in 2021 and given a 10-year prison term in June for allegedly plotting the toppling of Morales.

Supporters of the socialist government of Arce welcomed the detention of Camacho. Attorney General Wilfredo Chavez, a former minister under Morales, declared that "justice must do its job."