BRASILIA: Brazilian prosecutors on Friday filed an unprecedented lawsuit against oil giant Shell's subsidiary in the country, demanding US$108 million in compensation over deadly 2024 floods.

Torrential rains sparked historic flooding in southern Brazil in April and May of that year, leaving nearly 200 people dead, 500,000 more displaced and causing massive damage.

According to the lawsuit, Shell's liability should match its contribution to global warming, estimated at two per cent of historical global greenhouse gas emissions.

"This civil suit is aimed at holding the defendant company accountable, in terms of its environmental and climate-related responsibilities, for collective material and moral damages stemming from the extreme weather event that hit Rio Grande do Sul state," public prosecutors said, according to court documents seen by AFP.