Brazil's imprisoned Bolsonaro hospitalized ahead of surgery
AFP journalists saw a convoy of black cars escorted by motorcycles enter the parking garage of the DF Star hospital ahead of Bolsonaro's surgery Thursday.
It was unclear how long he would remain hospitalized.
The permission to leave prison granted by Supreme Court Justice Alexandre de Moraes, who oversaw Bolsonaro's trial, comes after an expert review last week stated that the operation was medically necessary.
Bolsonaro, 70, has grappled with health issues since being stabbed in the stomach during the 2018 presidential campaign.