KATMANDU, Nepal — An army plane with six Nepalese aboard went missing in a mountainous region of west Nepal on Tuesday while bringing a sick person to the capital, officials said. The plane was flying from the western town of Nepalgunj when it went out of contact in a remote mountainous area about 125 miles (200 kilometers) west of Katmandu, army spokesman Rabindra Chetri said. There were two crew members on board, along with a doctor, nurse and a relative of the sick person. Baglung district official Shyam Bahadur Thapa said villagers reported a possible plane crash in a forested mountain area. Local police and soldiers from an army camp were trekking to the remote site but officials were not expecting to hear from them until morning, he said.