Children stand in flood torrent after heavy rain in Sanaa, Yemen, on July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer. (Photos: Xinhua)

Two men ride a motorcycle driving through floodwater after a heavy rain in Sanaa, Yemen, on July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer.

A boy walks in floodwater after heavy rain in Sanaa, Yemen, July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer.

A car runs in floodwater after heavy rain in Sanaa, Yemen, July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer.

Photo taken on July 26, 2019 shows flood torrent after heavy rain in Sanaa, Yemen. Heavy rains and flood frequently hit many governorates in Yemen this summer.

A car runs in floodwater after heavy rain in Sanaa, Yemen, July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer.

A boy plays with floodwater after heavy rain in Sanaa, Yemen, July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer. (Photo by Mohammed Mohammed/Xinhua)

People walk in flood torrent after heavy rain in Sanaa, Yemen, July 26, 2019. Heavy rains and flood frequently hit many governorates in Yemen this summer. (Photo by Mohammed Mohammed/Xinhua)