Zay Yar Tun fills his truck with water for delivery to refugees in the parched hills of war-ravaged eastern Myanmar, where a heat wave is adding to the misery of life in displacement camps.

Under a roof of plastic sheets in one of the camps in Kayah state, Augusta waits for the 10 gallons that must cover her family's drinking, cooking and washing needs for the next three days.

More than 123,000 people have been forced to flee their homes in Kayah by the conflict unleashed by the military's 2021 coup, according to the United Nations.