Yemeni internally displaced people who fled their homes in Hodeidah are seen at a displaced camp in Sanaa, Yemen, on July 15, 2018. More than 121,000 residents have fled the war-torn city of Hodeidah and other parts of the province since June 1, the United Nations said this week. (Xinhua/Mohammed Mohammed)

Yemeni internally displaced children who fled their homes in Hodeidah are seen at a displaced camp in Sanaa, Yemen, on July 15, 2018. More than 121,000 residents have fled the war-torn city of Hodeidah and other parts of the province since June 1, the United Nations said this week. (Xinhua/Mohammed Mohammed)

A Yemeni internally displaced man who fled his home in Hodeidah sits by his tent at a displaced camp in Sanaa, Yemen, on July 15, 2018. More than 121,000 residents have fled the war-torn city of Hodeidah and other parts of the province since June 1, the United Nations said this week. (Xinhua/Mohammed Mohammed)

Yemeni internally displaced children who fled their homes in Hodeidah fill their bottles with water at a displaced camp in Sanaa, Yemen, on July 15, 2018. More than 121,000 residents have fled the war-torn city of Hodeidah and other parts of the province since June 1, the United Nations said this week. (Xinhua/Mohammed Mohammed)

Yemeni internally displaced children who fled their homes in Hodeidah play soccer at a displaced camp in Sanaa, Yemen, on July 15, 2018. More than 121,000 residents have fled the war-torn city of Hodeidah and other parts of the province since June 1, the United Nations said this week. (Xinhua/Mohammed Mohammed)