A Brazilian politician is reportedly in custody after throwing grenades at police officers who came to his house in Rio de Janeiro state to arrest him, according to the BBC.

Roberto Jefferson, an ally of far-right President Jair Bolsonaro, wounded two officers before surrendering on Sunday.

A Supreme Court judge earlier ordered his detention for insulting Chief Justice Cármen Lucía, reports the British broadcaster. He was already under house arrest for threatening her.

President Bolsonaro reacted by saying those who fired at police should be arrested.

The two officers were wounded by shrapnel from a grenade during the attack in Comendador Levy Gasparian, north of the state capital Rio de Janeiro. They were taken to hospital and later discharged.

The 69-year-old former leader of a political party is also reported to have fired a number of shots from a rifle, shattering the windshield of a police car.