At least 59 people have been killed in Vietnam amid landslides and floods triggered by Typhoon Yagi, according to state media reports.

The typhoon was Asia's most powerful storm this year and made landfall on Vietnam's northeastern coast on Saturday, after causing havoc in China and the Philippines.

Among the victims were six people, including a newborn baby and a one-year-old boy, who were killed in a landslide in the Hoang Lien Son mountains of northwestern Vietnam.

Their bodies were discovered on Sunday, a local official told the AFP news agency.

Other victims included a family of four who were killed after heavy rain caused a hillside to collapse onto a house in mountainous Hoa Binh province in northern Vietnam, state media reported.

On Monday morning, a passenger bus carrying 20 people was swept into a flooded stream by a landslide in mountainous Cao Bang province.

Rescuers were deployed, but landslides blocked the path to where the incident took place.

In Phu Tho province, rescue operations were continuing after a steel bridge over the engorged Red River collapsed.

Reports said 10 cars and trucks, along with two motorbikes, fell into the river.

Three people were pulled out of the river and taken to hospital, but 13 others were missing.

The Vietnamese government said the storm disrupted power supplies and telecommunications in several parts of the country, mostly in Quang Ninh and Hai Phong in the northeast.

The weather agency on Monday warned of more floods and landslides, noting that rainfall had ranged between 208mm and 433mm (8.2 inches to 17 inches) in several parts of the region over the past 24 hours.

"Floods and landslides are damaging the environment and threatening people's lives," the National Centre for Hydro-Meteorological Forecasting said in a report.

Yagi weakened to a tropical depression on Sunday, but several areas of the port city of Hai Phong were under half a metre (1.6 feet) of water and there was no electricity.

At Ha Long Bay, a UNESCO World Heritage Site about 70km (43 miles) up the coast from the city, the disaster management authority said 30 vessels sank after being pounded by strong wind and waves.

The typhoon also damaged nearly 3,300 houses, and more than 120,000 hectares (296,500 acres) of crops in the north of the country, the authority said.

Vietnam is preparing for more flooding with a tropical depression forecast to strengthen into a storm as it heads to its central coast, days after typhoon Yagi set off floods and landslides that killed more than 290 people in the north.

With a long coast facing the South China Sea, the Southeast Asian country is prone to tropical storms that can cause large numbers of casualties and serious damage to industrial production and properties.

The depression is forecast to strengthen into a storm within the next 24 hours, the government said in a statement, as it sent a warning to coastal provinces.

The storm would trigger heavy rains in central Vietnam, it said, adding that "the depression is evolving in a complicated manner, with possible changes in course, speed and strength."

Vietnam has been reeling from the impacts of Typhoon Yagi, the strongest storm to hit Asia this year, which made landfall in its northeastern coast 10 days ago.

The typhoon and its subsequent floods and landslides have killed 291 people overall, with 38 others missing and nearly 2,000 people injured, the disaster management agency said on Tuesday.

Industrial production in several northern provinces was halted, 235,000 houses were damaged and more than 300,000 hectares of rice and cash crops were inundated.

Heavy rains and floods have hit large swaths of Central Europe, with authorities urging people to follow emergency evacuation orders.

At least 17 people are dead across Central Europe from the floods, according to Reuters. Poland and the Czech Republic are especially hard-hit. While the floodwaters are receding in some areas, others are still bracing as rivers rise and residents of some of the regions already hit in Poland are describing the damage.

Polish resident Szymon Krzysztan, 16, standing in the town square of Ladek Zdroj, described losses from the floods as "unimaginable."

"It's a city like in an apocalypse. ... It's a ghost town," Krzystan told Reuters.

Jerzy Adamczyk, 70, told Reuters the scene was like "Armeggedon."

"It literally ripped out everything because we don't have a single bridge," Adamczyk said. "In Ladek, all bridges have disappeared. We are practically cut off from the world."

Flood conditions were seen in 207 locations across the Czech Republic, Prime Minister Petr Fiala said in a post on social media.

"Evacuations are underway in Opava, Krnov, Ostrava, Jeseník, Frýdlantsk and other places. Over 12,000 people were evacuated. A state of danger was declared in Frýdlantska," Fiala said on X, adding that firefighters had intervened in 7,884 incidents since the floods began.

Fiala visited the town of Jesenik, one of the hardest hit places, and said the worst was behind them. In his social media post, he said the rain had decreased on Sunday evening and weakened temporarily.

Mass evacuations are underway across the region. Fiala urged people in the Czech Republic to listen to instructions from their mayors and local authorities.

"The situation is really dangerous and cannot be underestimated. Unfortunately, we encounter cases where people refuse to evacuate. Then there are problems and situations that are very difficult to solve. I also ask everyone not to take unnecessary risks," he said in the post.

Following an emergency government meeting, Polish Prime Minister Donald Tusk announced a state of natural disaster in the flooded areas to facilitate evacuation and rescue operations, as well as to expedite financial support for the victims.

Tusk told a news conference that the Finance Ministry has so far earmarked 1 billion zlotys (US$258,000) for immediate payouts.

Water levels have subsided, leaving streets covered in debris and mud, damaged bridges and some burst dams and embankments. Schools and offices in the affected areas were closed Monday and drinking water and food were being delivered by trucks. Many Polish cities, including Warsaw, have called for food donations for flood survivors.

Experts are warning of a flood threat in Opole, a city of some 130,000 residents, where the Oder River has reached high levels and started bursting its banks at some points. Concerns have also been raised in the city of Wroclaw, home to about 640,000 residents, where the flooding was expected on Wednesday. The city suffered a disastrous flood in 1997 and the trauma is still present there.

In Hungary, Prime Minister Viktor Orbán cancelled his planned foreign engagements.

The mayor of Budapest warned residents close to the Danube of rising water levels and of road and public transit closures in the area.

"According to the latest forecasts, the water level of the Danube will rise by one metre per day from Monday," Mayor Gergely Karácson said in a Facebook post.

He added that a parking ban was in place in low-lying areas near the Danube, with the city using sandbags to curtail the flooding.