Former Brazilian President Jair Bolsonaro is undergoing surgery on Sunday, his fifth since being stabbed in the stomach while campaigning in 2018, his medical team said in a statement. The procedure started at 8:30 a.

The conservative leader has been hospitalized since Friday due to a bowel obstruction related to long-term effects of being stabbed in the abdomen in September 2018.

Brazil’s former President Jair Bolsonaro was hospitalized for severe abdominal pain related to a wound sustained when he was stabbed on the campaign trail seven years ago.