Former Brazilian President Jair Bolsonaro was hospitalized Friday in Brasilia after doctors diagnosed a bacterial lung infection, authorities said, marking the latest health episode for the 70-year-old who is currently serving a prison sentence.

Bolsonaro was admitted to the DF Star hospital with fever, vomiting and low oxygen levels. Doctors later confirmed a case of bacterial pneumonia and began treatment with intravenous antibiotics while keeping him under medical observation.

The former president was transferred to the hospital from detention. Since January, he has been held in the officers' wing of the 19th Military Police Battalion, known as "Papudinha," in Brasilia, where he is serving a sentence of 27 years, three months in prison for an attempted coup.