Residents salvage the remains of what use to be the United Methodist Church of South Africa in Claremont, near Durban, on Wednesday. AFP
The heaviest rains in 60 years pummelled Durban's municipality, known as eThekwini. According to an AFP tally, the storm is the deadliest on record in South Africa.
"At the moment the confirmed figures of people that have perished during this disaster is 259, across the KwaZulu-Natal (KZN) province," Nonala Ndlovu, spokeswoman for the provincial disaster management department told AFP.
President Cyril Ramaphosa has described the floods as a "catastrophe" and a "calamity." "Bridges have collapsed. Roads have collapsed. People have died," he said.
President Cyril Ramaphosa (C-R) greets a family member at the United Methodist Church of South Africa near Durban. AFP
"This is a catastrophe of enormous proportions," he said, addressing a local community after inspecting the damage from the floods that have claimed 259 lives.
The search for missing persons is still going on, said Ramaphosa, promising to "spare nothing" in dealing with the disaster.
"This disaster is part of climate change. We no longer can postpone what we need to do... to deal with climate change.
"It is here, and our disaster management capability needs to be at a higher level," said the president.
The United Methodist Church in the township of Clermont was reduced to a pile of rubble. Four children from a local family died when a wall collapsed on them.
Other homes hung precariously to the hillside, miraculously still intact after much of the ground underneath them washed away in mudslides.
Nokuthula Ntantiso's house survived, but many others in her Umlazi township did not. "It's scary, because even last night I didn't sleep... because I was wondering if even this (home) that I'm sleeping in can collapse at any time," the 31-year-old call centre operator said. She tried to go work Wednesday, but turned back at a collapsed bridge.
The storm forced sub-Saharan Africa's most important port to halt operations, as a main access road suffered heavy damage.
Shipping containers were tossed about, washed into mountains of metal that rose taller than the elevated highways. One container was wrapped around the beam of an on-ramp.
Sections of other roads were washed away, leaving behind gashes in the earth bigger than large trucks. The main highways were littered with trees and mud so deep that bulldozers were called to help clear it. Highway barriers lay twisted like pipe cleaners along the side of the roads.
"We see such tragedies hitting other countries like Mozambique, Zimbabwe, but now we are the affected ones," Ramaphosa said as he met with grieving families near the ruins of the church.
South Africa's neighbours suffer such natural disasters from tropical storms almost every year, but Africa's most industrialised country is largely shielded from the storms that form over the Indian Ocean.
These rains were not tropical, but rather caused by a weather system called a cut-off low that had brought rain and cold weather to much of the country.
When storms reached the warmer and more humid climate in Durban's KZN province, even more rain poured down.
Sindh province was the worst hit where 61 people were killed and 22 others injured, the NDMA said, adding that 59 houses were also damaged in the heavy downpour.
The Sunday flash flood in India's northern Uttarakhand state, triggered by what scientists said they believed was a large avalanche of glacier ice and rock, left up to 200 people missing in the Himalaya region.
Landslides are common in mountainous Nepal during the monsoon season that usually ends in September.
Now the two leaders — Democratic President Joe Biden and Republican Speaker of the House Kevin McCarthy — must sell their weekend agreement to their members of Congress.
New Zealand's GeoNet monitoring agency said the epicentre was 33 kilometres (21 miles) below the earth's surface. There was no immediate tsunami warning and no reports of damage on the New Zealand mainland.
Two people were hospitalised and the shelling smashed windows and damaged roofs of an eight-storey apartment building, four homes, a school and other places, he said.