Crimea's officials declared a regional emergency after an oil spill from tankers reaches Sevastopol, prompting cleanup efforts amid environmental concerns.
Read moreDelhi reinstates GRAP-III measures as air quality index hits 'very poor' levels, with forecasts predicting continued deterioration.
Read moreThick smog in New Delhi raises alarms over flight disruptions as visibility drops to zero. Air quality remains 'very poor' amid ongoing pollution issues.
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