Some 132 municipalities registered emergencies sparked by excessive rainfall caused by the El Nino climate phenomenon, Xinhua reported citing the Brazilian state Civil Defense agency's statement.
About 4,000 people have been evacuated from their homes, said the agency.
The federal government is ready to send aid to the state, Brazil's President Luiz Inacio Lula da Silva posted on the social media platform X, formerly Twitter.
Last month, the neighboring state of Rio Grande do Sul saw as many as 51 deaths due to extreme weather brought on by an extratropical cyclone.
AMK/PR