The pilot of Buddha Air had informed Air Traffic Control (ATC) at Tribhuvan International Airport (TIA) in Kathmandu of the sighting on the runway at around 7:45 am, said TIA spokesperson Prem Nath Thakur.
The leopard disappeared into the storm drains along the runway. A search is on to locate the animal.
Security agencies including police, hunters and forest officials have been deployed to the spot.
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Prem Nath ThakurThe pilot of Buddha Air informed us that he saw a leopard-like animal on the airport ground. We have called Forest Office officials.
The closure, which lasted for about half an hour, led to a disruption of flight operations.
The international airport in Nepal's capital Kathmandu is located at the edge of a forested area to its north.