Thick smog has caused widespread disruption in New Delhi, India, leading to hundreds of flight cancellations and delays. The air quality has reached severe levels, prompting health warnings for residents.

• Approximately 400 flights were delayed and over 160 flights cancelled by airlines including Indigo and Air India.
• The Air Quality Index (AQI) in Delhi settled at 498, indicating severe air pollution.
• The Delhi government has advised residents, especially children and those with respiratory issues, to stay indoors and use masks due to worsening air quality.