A plane, operated by US-Bangla, a Bangladeshi airline, has crashed at Kathmandu's international airport, media reports say.
The BBC reported that went off the runway while landing and crashed on the east side of Tribhuvan International Airport's runway.
US-Bangla, a Bangladeshi airline crash at Nepal's Tribhuwan Internationa Airport— Aniruddha (@aniruddhapd) March 12, 2018
250 passengers were on board. pic.twitter.com/kukK5zl2ks
The plane can reportedly carry 67 passengers and firefighters were at the scene trying to extinguish a fire, and an airport spokesperson feared that there are a number of casualties.
"We are in the process of putting out the fire and rescuing the passengers," airport spokesman Prem Nath Thakur told AFP.
"There were 67 passengers and 4 crew members" aboard the plane, said airport spokesman Prem Nath Thakur.
"So far 20 injured have been taken to the hospital. Police and army are trying to cut apart the plane to rescue others," he added.
Nepal has suffered a number of air disasters in recent years, dealing a blow to its tourist industry.
Its poor air safety record has been blamed largely on inadequate maintenance, inexperienced pilots and substandard management.
In early 2016, a Twin Otter turboprop aircraft slammed into a mountainside in Nepal killing all 23 people on board.
Two days later, two pilots were killed when a small passenger plane crash-landed in the country's hilly midwest.