The son of former Brazilian President Jair Bolsonaro, Sen. Flavio Bolsonaro, reacts outside the hospital where his father was taken in Brasilia, Brazil, on Friday. Jair Bolsonaro, has been imprisoned in a Brasilia penitentiary after being sentenced to 27 years in prison for his role in a coup attempt. Photo by Andre Borges/EPA

March 13 (UPI) — 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.

Health issues have been a recurring concern for Bolsonaro since a 2018 assassination attempt during a campaign rally in the southeastern city of Juiz de Fora, where he was stabbed in the abdomen.

The attack caused severe internal injuries and required emergency surgery, forcing him to spend weeks recovering in hospital while continuing his presidential campaign.

Since then, Bolsonaro has undergone several abdominal procedures and has been hospitalized numerous times for intestinal obstructions, infections, hernia repairs and other chronic health problems. Doctors said Friday his condition is stable and that doctors continue to monitor the infection.