Footage online showed part of the 375-metre Phong Chau bridge still standing

PHU THO, Vietnam (BBC)-A busy bridge in northern Vietnam collapsed after being hit by Super Typhoon Yagi, which has killed more than 60 people since making landfall on Saturday.

Dashcam footage showed the moment the Phong Chau bridge in Phu Tho province gave way on Monday, plunging several vehicles into the water below. Searches were under way for 13 people.

The storm has wreaked havoc across the north of the country, with flooding and landslides leaving millions of people without power over the weekend.

Although it has now weakened into a tropical depression, authorities have warned Yagi will create more disruption as it moves westwards.

Ten cars and two scooters fell into the Red River following the collapse of the Phong Chau bridge, Deputy Prime Minister Ho Duc Phoc said.

The moment a lorry plummeted into the water as the bridge decking ahead fell away before the driver had time to stop was captured on camera.

At least three people have been rescued from the river so far.

Part of the 375-metre (1230 feet) structure is still standing, and the military has been instructed to build a pontoon bridge across the gap as soon as possible.

At least 44 people have been killed in landslides and flash floods, Vietnam’s ministry of agriculture and rural development said on Monday.

Among them were a 68-year-old woman, a one-year-old boy, and a newborn baby.

The typhoon also tore roofs from buildings and uprooted trees.

In the Yen Bai province, flood waters reached a metre (three feet) high on Monday, with 2,400 families having to be evacuated to higher ground as levels rose, AFP news agency reported.

Nearly 50,000 people were evacuated from coastal towns in Vietnam, with authorities issuing a warning to remain indoors.

Schools were temporarily closed in 12 northern provinces, including Hanoi.

Before hitting Vietnam, Yagi left 24 people dead across southern China and the Philippines.

As the world warms, typhoons can bring higher wind speeds and more intense rainfall, although the influence of climate change on individual storms is complicated.