Vietnam scrambled to evacuate thousands of people from their homes as tropical storm Saudel approached on Wednesday.
Having already battered the Philippines, the storm was grinding its way across the South China Sea and was expected to hit Vietnam on Sunday, making landfall in central areas that are suffering from their worst flooding in two decades.
"The damage will be immense if we are not well prepared as the projected impact area has already suffered from floods and landslides," Mai Van Khiem, chief of Vietnam's weather agency said in a statement.
The region has been hit by particularly heavy rainfall amid the onset of a La Niña weather system, which is characterised by unusually cold temperatures in the equatorial Pacific Ocean.
In the Philippines, photographs showed widespread flooding and boats used to ferry residents to dry ground in Quezon province, southeast of the capital Manila.
Humanitarian groups have warned that the floods in Vietnam will exacerbate the hardships already being suffered by some of the country's poorest communities due to the COVID-19 pandemic.
Delivering food to some of the most badly affected areas has become difficult, and photographs and television images of floodwaters almost completely submerging rural homesteads has unleashed an outpouring of donations for aid.
President Donald Trump has stated on Monday that the US would either reach a deal with Iran or "finish the job", renewing his threat of military action.
At least eight people have been killed after thunderstorms battered central China's Hubei Province, state media said on Tuesday, as forecasters warned of more torrential rain across various parts of the country that are home to around 200 million people.
Hamas has announced on Monday that it had dissolved its de facto government in Gaza and was ready to hand over to a group of Palestinian technocrats, a move it described as a step forward in a US-backed plan for the enclave, but Israel dismissed as a "stunt".
The death toll from Venezuela's twin earthquakes has risen to 3,535, authorities said on Monday, while nearly 18,000 people remain homeless more than a week after the disaster struck the capital and nearby coastal areas.
Russia hammered Ukraine with missiles and drones early on Monday, killing at least 26 people and exposing Kyiv's critical shortage of US-made interceptors, officials said, just days after the deadliest attack on the Ukrainian capital this year.