At least 12 have been killed and 17 others are missing as Typhoon Bualoi hit Vietnam with heavy rain and strong winds, tearing through communities, flooding roads and damaging houses, according to state media.
In the early hours on Monday, the typhoon made landfall and caused waves as high as 8 metres (26 feet), according to the national weather agency.
The typhoon then weakened to a tropical storm that moved into Laos, state media reported.
The storm swept away temporary bridges and flooded roads and low-water crossings across several provinces. Flooding in cities submerged vehicles, and many highland communities were cut off, according to the Associated Press news agency.
State media said rescue teams were searching for 17 missing fishermen.
Hue City, Thanh Hoa and the province of Ninh Binh, where strong winds collapsed houses, were all hit.
According to state media, more than 347,000 households lost power before the typhoon made landfall just after midnight on Sunday.
