Thick haze turned the skies in Indonesia's Palangkaraya shades of yellow and orange on Thursday, reducing visibility to a few dozen metres as wildfires cause a regional air pollution crisis. Kuala Lumpur topped monitoring site IQAir's ranking of the most polluted major cities, followed closely by Singapore. Indonesia, which has deployed tens of thousands of firefighters, was set to try dropping dry ice over parts of South Sumatra to "break up the smoke". — AFP
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