SAO PAULO — While flooding that has devastated Brazil's Rio Grande do Sul state has yet to subside, another scourge has spread across the region: disinformation on social media that has hampered desperate efforts to get aid to hundreds of thousands in need.
Among fake postings that have stirred outrage: That official agencies aren't conducting rescues in Brazil's southernmost state. That bureaucracy is holding up donations of food, water and clothing. One persistent rumor contends that authorities are concealing hundreds of corpses, said Jairo Jorge, mayor of the hard-hit city of Canoas.
Jorge and other officials say hidden actors behind the postings are exploiting the crisis to undermine trust in government.
Ary Vanazzi, mayor of Sao Leopoldo, said many people ignored official warnings and instead heeded social media posts saying government alerts ''were just politicians trying to alarm people.''
"Because of that, many didn't leave their homes in this emergency. Some might have died because of it,'' Vanazzi told The Associated Press. ''Sometimes we spend more time defending against lies than working to help our population.''
Floods over the past two weeks have killed at least 149 people, and more than 100 remain missing, state authorities said Wednesday. More than 600,000 people have been forced from their homes.
Brazil became a hotbed for disinformation ahead of the 2018 election won by Jair Bolsonaro. During his presidency, adversaries often found themselves fending off digital onslaughts. The Supreme Court has since launched one of the world's most aggressive efforts to stamp out coordinated disinformation campaigns, led by one controversial justice in particular who is overseeing an investigation into the spread of false news. He has ordered social media platforms to remove dozens of accounts.
The army was spared online mudslinging during the presidency of Bolsonaro, a former captain who is a fierce opponent of his successor, Luiz Inácio Lula da Silva. But it has become a target for far-right hostility under Lula, with social media users attacking military leaders for taking orders from the leftist president, said Alexandre Aragão, executive editor of fact-checking agency Aos Fatos.