India, Dec. 28 -- Delhi's Indira Gandhi International Airport on Sunday issued a travel advisory in view of the dense fog that blanketed the national capital as the city once again breathed air that came under the 'severe' category.

At 11.03 pm on Sunday, Delhi airport operator DIAL, on its official X (formerly Twitter) handle announced that low visibility procedures are currently in progress at the airport. "Low visibility procedures are in progress at Delhi airport," the post read.

While all flight operations are currently normal, passengers are requested to contact their concerned airline for their updated flight information, DIAL said.

According to data from central pollution control board (CPCB)'s Sameer app, Delhi's AQI stood at ...