Officials in Nepal say a military plane has crashed in a remote mountainous area in the country's northwest, killing all six people on board.

The plane was transporting a patient from western Nepal to the capital, Katmandu, when it crashed late Tuesday about 200 kilometers west of the city.

Rescuers hampered by bad weather reached the site Wednesday. Officials said four bodies have been recovered, but that everyone on board is presumed dead.

The plane was carrying the patient and a family member, along with two medical personnel and two crew members.