Singapore haze hits 'very unhealthy' as Indonesian wildfires blanket region

Singapore's air quality deteriorated to 'very unhealthy' levels, the worst globally, as haze from Indonesian wildfires spreads across the region days before the F1 weekend. Malaysia's Johor state closed 200 schools due to the pollution. The event underscores recurring transboundary haze from Indonesian land-clearing fires, with potential economic and health impacts.