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.

The death toll from Typhoon Yagi and its subsequent rain that triggered floods and landslides has climbed to 87 as 70 others remain missing and hundreds were injured, state media said.

Manufacturers say that while many factories acted early to minimize damage, roughly 10 percent of buildings in Haiphong are deeply damaged.