Hundreds dead and missing in flooding across South East Asia

Hundreds are dead and missing in South East Asia, where some of the heaviest rain in decades has swept the region.

Monsoons exacerbated by tropical storms has caused some of the worst flooding in years, with millions affected in Indonesia, Malaysia and Thailand.

The death toll on Indonesia’s Sumatra island has passed 300 and there are fears this could increase further as dozens remain missing.

Evacuation efforts are still under way there, with major roads cut off, and internet and electricity only partially restored.

Officials said on Sunday that the death toll in Thailand had risen to 170. There were also several deaths reported in Malaysia.

Elsewhere, there have been nearly 160 deaths in Sri Lanka due to a bout of particularly extreme weather that has caused flooding and mudslides.

An exceptionally rare tropical storm, named Cyclone Senyar, caused catastrophic landslides and flooding in Indonesia, with homes swept away and thousands of buildings submerged.

“The current was very fast, in a matter of seconds it reached the streets, entered the houses,” a resident in Indonesia’s Aceh Province, Arini Amalia, told the BBC.

She and her grandmother raced to a relative’s house on higher terrain. On returning the following day to retrieve some belongings, she said the flood had completely swallowed the house: “It’s already sunk.”

After waters rapidly rose in West Sumatra and submerged his home, Meri Osman said he was “swept away by the current” and clung onto a clothesline until he was rescued.

“During the flood, everything was gone,” a resident of Bireuen in Sumatra’s Aceh province told news agency Reuters. “I wanted to save my clothes, but my house came down.”

The bad weather has hampered rescue operations, and while tens of thousands of people have been evacuated, hundreds are still stranded, the Indonesian disaster agency said.

In Tapanuli, the worst-affected area, residents have reportedly ransacked shops in search of food.

Pressure is mounting on Jakarta to declare a national disaster in Sumatra to enable a faster and more co-ordinated response.

In Thailand’s southern Songkhla province, water rose 3m (10ft) and at least 145 people died in one of the worst floods in a decade.

Across the 10 provinces hit by flooding, more than 3.8 million people have been affected, the government said on Saturday.

The city of Hat Yai experienced 335mm of rainfall in a single day last week – the heaviest in 300 years. As waters receded, officials recorded a sharp rise in the death toll.

At one hospital in Hat Yai, workers were forced to move bodies to refrigerated trucks after the morgue became overwhelmed, news agency AFP reported.

“We were stuck in the water for seven days and no agency came to help,” Hat Yai resident Thanita Khiawhom told BBC Thai.

The government has promised relief measures, including compensation of up to two million baht ($62,000) for households that had lost family members.

In neighbouring Malaysia, the death toll is far lower, but the damage is just as devastating.

Flooding has wreaked havoc and left parts of northern Perlis state underwater, with two people dead and tens of thousands forced into shelters.

Elsewhere in Asia, Sri Lanka has been battered by Cyclone Ditwah, with at least 193 people killed and more than 200 missing, according to the Disaster Management Centre.

Sri Lanka is also grappling with one of its worst weather disasters of recent years, and the government has declared a state of emergency.

More than 15,000 homes have been destroyed and some 78,000 people forced into temporary shelters, officials said. They added that about a third of the country was without electricity or running water.

Meteorologists have said the extreme weather in South East Asia may have been caused by the interaction of Typhoon Koto – which has crossed over the Philippines and is now heading towards Vietnam – and the rare formation of Cyclone Senyar in the Malacca Strait.

Three people have already been killed and another is missing in Vietnam due to the effects of the approaching Typhoon Koto, news agency AFP reports.

The region’s annual monsoon season, typically between June and September, often brings heavy rain.

While it is hard to link individual extreme weather events to climate change, scientists say it is making storms more frequent and intense, resulting in heavier rainfall, flash flooding and stronger winds.