Bolsonaro undergoes surgery as a result of the attack

The doctors recommended that Bolsonaro, 63, rest for 48 hours after surgeryMeanwhile, Vice President Hamilton Mourao will badume the duties of interim president, according to an official statement.

The procedure will divert right-wing activist Bolsonaro from managing a serious mining disaster in the state of Minas Gerais, where a dam has exploded in an iron mine and released a stream of mud that has killed at least 58 people and hundreds of missing.

Bolsonaro, who took office on 1 January, went to a hospital in Sao Paulo on Sunday, then posted a video on Twitter wearing a dressing gown, summarizing recent events, including his flight over the site of the mining disaster in the city of Brumadinho.

As he said, the disaster "It concerns us all and we sympathize with the families of the victims"Rescue operations are being conducted by state authorities and Bolsonaro has convened a council of ministers to support local efforts.

Bolsonaro surgery should last three hours and stay in the hospital for 10 days.

His advisers will hold meetings in the lobby of his recovery room to allow him to direct the day-to-day activities of the government when he regains control of Mourao's hands, the statement said.