Rescue teams have launched a series of operations in the area in an attempt to find more survivors.
Among the victims were a one-year-old boy, a newborn baby, and a 68-year-old woman.
Before hitting Vietnam, Yagi left 24 people dead across southern China and the Philippines, as per theBBC.
There have also been warnings of more flooding and landslides as the storm moves westward.
I felt like Ive just escaped death.
I cant swim and I thought I would die.