A thick blanket of fog has engulfed Delhi and adjoining areas in northern India, leading to travel delays and chaos.
More than 100 flights were delayed at the Delhi airport on Friday morning, according to PTI news agency. Dozens of trains have also been rescheduled, or are running late.
India’s weather department has said that foggy conditions are likely to continue for the next few days.
Dense fog is common at this time of the year in Delhi and other parts of northern India, as the region grapples with an intense cold wave.