Video shows haze hanging over New Delhi

STORY: The capital was seen enveloped in a haze on Wednesday morning as the wind speed dipped to about 3.7 miles (6 kilometers) per hour.

Delhi Chief Minister Arvind Kejriwal's government said last week that people who let off firecrackers during Diwali would face up to six months in jail, under a broader ban introduced to help combat extreme winter pollution.

Meanwhile, burning crop residue in the neighboring Haryana and Punjab states has added to the pollution woes of New Delhi.

Delhi is the world's most polluted capital and its air becomes particularly bad from mid-December to February as heavy, cold air traps dust, vehicle emissions, and smoke from burning crop stubble in states like Punjab and Haryana.