New Delhi: Flight operations at the IGI airport were badly affected Saturday due to dense fog, which led to the diversion of 13 flights and the re-scheduling of several others.
"Due to dense fog this Christmas morning, 13 flights -- 12 domestic and one international -- were diverted to Jaipur, Lucknow and Ahmedabad," an airport official said.
Five flights from Hyderabad, Mumbai, Chennai, Kolkata and Dhaka were diverted to Lucknow, while six flights were diverted to Jaipur and two to Ahmedabad.
Fog started to descend over the airport in the wee hours but it became dense after 5 am, forcing airport authorities to implement the Low Visibility Procedure (LVP).
The LVP lasted for about eight hours, during which 226 flights operated using various categories of instrument landing system.
About 119 flights operated using CAT I ILS, while 50 used CAT II, 41 with CAT III A and 16 used CAT III B ILS.
ILS of various categories are used for landing under low visibility conditions.
According to Director of the Met department at the IGI airport, R K Jenamani, dense fog conditions would remain, and are likely to affect the flight operations from 10 pm onwards today.