Dense fog disrupted normal operations at the Indira Gandhi International Airport in New Delhi this morning with about 17 flights being delayed and another three cancelled.
The general visibility dropped to zero metres while the runway visibility to less than 50 metres at around 2 am.
The visibility improved to 50 metres and runway visibility to 150 around 7 am.
"About 17 domestic and international flights, arriving and departing from the national capital have been delayed," airport sources said.
Three early morning domestic flights to Lucknow, Leh and Kullu have to be cancelled due to poor visibility at the airport.
Fog has been disrupting flight movement at the IGI airport this winter, with over 1,200 being delayed and around 150 being cancelled.
