Wildfire smoke killed over 3,500 in Indonesia in September, study finds

Toxic smoke from forest and land fires killed 3,560 people in Indonesia in September, a report by the Centre for Research on Energy and Clean Air says. Air pollution deaths overall rose 42% to 5,310. Kalimantan and Sumatra were worst hit, and a record 58 million people breathed unhealthy to hazardous air as drought-driven fires raged.