People air locusts for food in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

A man displays a locust for food in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

People air locusts for food in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

A swarm of locusts fly in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

People prepare a meal with locusts in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

A swarm of locusts fly in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

People air locusts for food in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

People air locusts for food in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

A swarm of locusts fly in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)

A swarm of locusts fly in Sanaa, Yemen, June 24, 2019. A massive outbreak of locusts has posed a serious threat to the agriculture in Yemen. (Photo: Xinhua)