Nguyen Minh Hai, who fell into the flooded river, told state Vietnam Television: “I was so scared when I fell down. I felt like I’ve just escaped death. I can’t swim and I thought I would die.”

Pham Truong Son, 50, told VN Express that he was driving on the bridge on his motorcycle when he heard a loud noise. Before he knew what was happening, he was falling into the river.

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“I felt like I was drowning at the bottom of the river,” Son told the news outlet, adding that he managed to swim and hold on to a drifting banana tree to stay afloat before he was rescued.

Dozens of businesses in Haiphong province haven’t resumed production because of extensive damage to their factories, state newspaper Lao Dong reported. It said the roofs of several factories were blown apart and water seeped inside, damaging finished goods and expensive equipment.

Some companies said they still didn’t have electricity and that it would take at least a month to resume production.

Parts of Haiphong and Quang Ninh provinces were still without power.

The two provinces are industrial hubs, housing many factories that export goods, including EV maker VinFast and Apple suppliers Pegatrong and USI.

Authorities are still assessing the damage to factories, but initial estimates showed that nearly 100 enterprises were damaged, resulting in millions of dollars in losses, the newspaper reported.

Prime Minister Pham Minh Chinh visited the city of Haiphong on Sunday and approved a $4.62 million ($6.93 million) package to help the port city recover.

Yagi was the strongest typhoon to hit Vietnam in decades, with winds up to 149km/h when it made landfall. It weakened on Sunday, but the country’s meteorological agency warned that continuing downpours could cause floods and landslides.

On Sunday, a landslide killed six people, including an infant, and injured nine others in Sapa town, a popular trekking base known for its terraced rice fields and mountains.

Overall, state media reported 21 deaths and at least 299 people injured from the weekend.

Skies were overcast in the capital, Hanoi, with occasional rain as workers cleared uprooted trees, fallen billboards and toppled electricity poles. Heavy rain continued in north-western Vietnam and forecasters said it could exceed 40 centimetres in places. Yagi also damaged agricultural land.

Before hitting Vietnam, Yagi caused at least 20 deaths in the Philippines last week and four deaths in southern China.

Chinese authorities said infrastructure losses across Hainan island province amounted to $US102 million, with 57,000 houses collapsed or damaged, power and water outages and roads damaged or impassable due to fallen trees. Yagi made a second landfall in Guangdong, a mainland province neighbouring Hainan, on Friday night.

Storms like Typhoon Yagi are “getting stronger due to climate change, primarily because warmer ocean waters provide more energy to fuel the storms, leading to increased wind speeds and heavier rainfall,” said Benjamin Horton, director of the Earth Observatory of Singapore.