JAKARTA, Oct 30 — Air pollution from smoke emitted by months of wildfires across Indonesia caused an estimated 3,560 deaths in the vast Southeast Asian archipelago in September alone, according to a scientific study.

The same month, about 57.8 million people were inhaling unhealthy to hazardous air, said the report by the Centre for Research on Energy and Clean Air (CREA), a Helsinki-based think tank.

“Worsening air quality due to forest and land fires in Indonesia pushed the estimated death toll to 3,560 cases in September 2026, a twofold increase from the August estimate,” said a CREA statement.

The study estimated the number of deaths brought about by short-term exposure to PM2.5 pollution, which are deaths occurring within days of exposure.