A child walks inside a camp for internally displaced persons (IDPs) in Midi District, Hajjah Province, northern Yemen on June 17, 2021. The IDPs in Hajjah continue to suffer as the civil war is still raging on in Yemen. What's worse, high temperatures and lack of humanitarian aids in recent days have made their life more insufferable. (Photo by Mohammed Al-Wafi/Xinhua)

A child cools down his family's hut with water inside a camp for internally displaced persons (IDPs) in Midi District, Hajjah Province, northern Yemen on June 17, 2021. The IDPs in Hajjah continue to suffer as the civil war is still raging on in Yemen. What's worse, high temperatures and lack of humanitarian aids in recent days have made their life more insufferable. (Photo by Mohammed Al-Wafi/Xinhua)

A child is seen in front of her family's tent inside a camp for internally displaced persons (IDPs) in Midi District, Hajjah Province, northern Yemen on June 17, 2021. The IDPs in Hajjah continue to suffer as the civil war is still raging on in Yemen. What's worse, high temperatures and lack of humanitarian aids in recent days have made their life more insufferable. (Photo by Mohammed Al-Wafi/Xinhua)

Children are seen in front of their family's tent inside a camp for internally displaced persons (IDPs) in Midi District, Hajjah Province, northern Yemen on June 17, 2021. The IDPs in Hajjah continue to suffer as the civil war is still raging on in Yemen. What's worse, high temperatures and lack of humanitarian aids in recent days have made their life more insufferable. (Photo by Mohammed Al-Wafi/Xinhua)