The Korean Embassy in Nepal said Sunday that rescuers and local police officers are searching for them. But search operations have been hampered by bad weather and the risk of another avalanche.

Four Koreans have been missing in the Himalayas since their trekking group was hit by an avalanche on Friday.

The group consisted of nine Koreans, all teachers from an education office in South Choongcheong Province, and three guides. The route they took is popular among travelers there and considered one of the easier ones.

Four of them -- two women, one in her 30s and one in her 50s, and two men in their 50s -- and the three Nepalese went missing, while the five others were safely evacuated.

The Korean government has asked local authorities to reinforce the search operation and dispatched an emergency team to Nepal.