In the province of Ma’arib east of the capital city of Yemen, 19 children were among 30 people killed by the flash floods, AFP reported.

In the province’s displaced person camps, 1,340 families saw their tents and belongings swept away.

In Lahij province, seven people drowned when their vehicle was swept downstream.

Another four people were killed on the road connecting the southern provinces of Hadramawt and Shabwa, the report added.

The houses in Yemen’s the UNESCO-listed Old City of Sana’a are also collapsing due to heavy rains, as months of floods and storms assail a country already reeling from war, food shortages, and disease.

The distinctive brown and white mud-brick houses of Sana’a’s historic neighborhoods, which date from before the 11th century, have long been under threat from war and neglect.

The destruction has dealt a new blow to a country already in the grips of what the United Nations describes as the world’s worst humanitarian crisis after years of Saudi-led war against the Arab country.

Five years of war have killed more than 100,000 people, left 80 percent of the population reliant on aid, and pushed millions to the brink of famine.

In addition, and on top of the new coronavirus that is believed to be spreading largely undetected, heavy rains spread diseases like cholera, dengue fever, and malaria.

The overflowing Brahmaputra River, which flows through China’s Tibet, India, and Bangladesh, has damaged crops and triggered mudslides, displacing millions of people, officials said.

More than 2.75 million people in Assam have been displaced by three waves of floods since late May that has claimed 79 lives after two more deaths were reported overnight, a state government official said.

“The flood situation remains critical with most of the rivers flowing menacingly above the danger mark,” Assam water resources Minister Keshab Mahanta told Reuters.

Assam is facing the twin challenge of combating floods and the coronavirus pandemic. Out of 33 districts, 25 remained affected after the current wave of flooding, beginning a fortnight ago.

India is grappling with the novel coronavirus, which has infected nearly 1.1 million people and 26,816 have died from the COVID-19 disease, government data showed on Sunday.

In neighboring Nepal, the government asked residents along its southern plains on Sunday to remain alert as heavy monsoon rains were expected to pound the Himalayan nation where more than 100 have died in floods and landslides since June, officials said.

Some 110 people were killed and another 100 injured as landslides and flash floods washed or swept away homes, upended roads and bridges and displaced hundreds of others in 26 of the country’s 77 districts, police said.

Home ministry official Murari Wasti said the death toll was expected to rise as 48 people were still missing.

“Search and rescue teams are looking for those who are missing in different places but chances of finding them alive are slim,” Wasti told Reuters.

Barun Paudel of the weather forecasting office in the capital, Kathmandu, said heavy rains were expected to pound much of the mainly mountainous nation in the next four days.

“We have urged residents to remain alert against possible landslides and floods,” he said.

Landslides and flash floods are common in Nepal, India’s Assam and Bihar states during the June-September annual rainy season.