The jets have airlifted a daily average of 20 tons of aid materials offered by the international community.

The items include drinking water, tents, medical equipment and emergency generators.

"The government expects the extension of our military cargo planes' mission period to be helpful to the Indonesian government's disaster relief efforts," the ministry said.

Air Force Col. Jung Yeon-hak, who's in charge of the local operation, said in a statement that his team will continue to do its best to help those in need in close partnership with service members with similar missions from other foreign countries such as the United States, Australia and New Zealand.

The catastrophe late last month left more than 2,000 people dead and tens of thousands of others displaced. (Yonhap)