All 19 people aboard a plane attempting to land in Nepal were killed when the aircraft hit a rooftop and broke apart.

Among the victims were two Americans, 10 Indian nationals, one Japanese passenger and six Nepalese, including three crew members.

The plane, a Buddha Air Beechcraft 1900D turboprop, hit a rooftop in the village of Bisankunarayan, a few miles south of Nepal's capital of Katmandu, The Associated Press reported.

The eyewitness who saw the plane brake apart on impact said heavy fog diminished visibility.

Rescue crews pulled 18 bodies from the wreckage, while the nineteenth victim died after being transported to a hospital.

According to the report, the two American victims were Andrew Wade and Natalie Neilan.

The aircraft was returning to Katamandu's international airport after a one-hour mountain flight to view Mount Everest.