Dense fog enveloped the Indira Gandhi International Airport in Delhi this morning, leading to delay and diversion of over 70 flights. Fog started to descend on the airport around 8 PM on Sunday night and gradually became dense, forcing airport authorities to implement low visibility procedure (LVP). Around 23 flights coming to the national capital had to be diverted to nearby airports due to the foggy conditions. An airport official said that the runway visibility hovered between 50 to 175 meters through the night, resulting in disruptions in flight operations. On Sunday, over 100 flights were affected when fog enveloped the airport. Over 40 flights, including 14 international ones, were diverted while 38 were cancelled.