Brazilian President Jair Bolsonaro smiles at supporters gathered outside the presidential residence Alvorada Palace on his 67th birthday in Brasilia, Brazil, Monday, March 21, 2022. (Photo: AP)

Brazilian President Jair Bolsonaro was admitted to a military hospital in Brasilia Monday to undergo tests after feeling unwell, local press reported.

Bolsonaro, 67, who was stabbed in the abdomen during the 2018 presidential campaign leaving him with lasting health problems, was absent from an evening event organized by the Republican Party which he had been slated to attend.

"I'm sure the president is fine, it's just some extra exams he's doing, that's why he's not here," party chairman Marcos Pereira said.