The protests took place in several Bolivian cities, including La Paz, Cochabamba, and Santa Cruz, the news agency EFE reported.
One person was reportedly hospitalised with a gunshot wound to the stomach. According to Health Minister Gabriela Montano, the person is in critical condition.
Protests in Bolivia broke out in the aftermath of the 20 October presidential and parliamentary elections following an announcement by the authorities saying incumbent President Morales had won the voting.
The opposition has disputed the results and condemned the vote-counting process, citing a lack of transparency.
Morales has described the protests as an attempted coup d’etat, staged by the right-wing opposition.