According to local media, the Air Dynasty helicopter crashed in the Shivapuri area of Nuwakot on Wednesday afternoon.
A total of four people have been killed.
According to local media reports, the helicopter was flying from Kathmandu to Rasuwa when it crashed into a hill at Surya Chaur-7 in Nuwakot district.
As soon as information about the accident was received, the authorities sent rescue teams to the spot.
Local media outlets cited sources at Tribhuvan International Airport (TIA) as saying that the helicopter took off from Kathmandu at 1:54 p.m. The helicopter lost contact with authorities after reaching Surya Chaur.
The helicopter lost contact just three minutes after take-off.