Dozens of homes had their roofs damaged by a hailstorm and hundreds of people are without contact in Rio Grande do Sul.

Jair Bolsonaro is facing several investigations into his attacks on the electoral system and his suspected role in encouraging his supporters to storm government buildings after leftist Lula took office.

The ruling will give police greater ability to investigate the multiple allegations of wrongdoing Bolsonaro faces.

The testimony comes after an electoral court declared Bolsonaro ineligible for public office until 2030 for abusing his presidential powers to undermine trust in Brazil's electoral system.

The search warrant follows police allegations that Bolsonaro's aides used government resources for their personal advantage.

The Kayapo leader, who became globally known for his environmental campaigning in the 1980s with musician Sting at his side, says he has visions of disaster.

Brazil, the country with the highest number of murders in the world, is also home to some of the planet's most deadly police forces.

Armed with a PowerPoint presentation but no hard evidence, Bolsonaro spent nearly an hour making his case to the assembled ambassadors at the presidential palace briefing.

A total of 3,713 people were left with damaged houses, and 697 were evacuated from areas at risk from the cyclone.

Dubbed 'Slavery Simulator,' the Portuguese-language game saw players trade in slaves and strategise to prevent the abolition of slavery in order to amass virtual riches.

The raids represent the tenth phase of an operation launched in mid-January to identify people who participated in, funded or fostered the riots.

The former president has said he did nothing wrong in receiving the gifts, but the jewellery incident tarnished his reputation as an anti-corruption leader.