Ex-army chief Juan Jose Zuniga, ex-head of navy Juan Arnez and Alejandro Irahola, ex-head of army's mechanised brigade, face up to 20 years in prison for terror charges and up to 15 years in prison on uprising charges.
"This pre-trial detention ordered by the judge will undoubtedly set a precedent and is a good signal for the investigation to move forward," said Attorney General Cesar Siles. Brazilian President Luiz Inacio Lula da Silva announced on Thursday that he would soon visit his"friend" Arce to support him following the unrest.
Bolivia, which has a long history of military coups, has in recent weeks been rocked by an economic crisis due to a drop in natural gas production, its main source of foreign currency until 2023.