A typhoon that ripped roofs off homes has killed dozens of people across Vietnam and the Philippines, officials from both countries said on Monday, as a weakened storm Bualoi crossed into neighbouring Laos.

The typhoon battered small islands in the centre of the Philippines last week, toppling trees and power pylons, unleashing floods and forcing 400,000 people to evacuate.

A Philippine civil defence official said on Monday the death toll there had more than doubled to 24, with most of the victims either drowned or hit by debris.

In Vietnam, Bualoi made landfall as a typhoon late on Sunday, generating winds of 130 kilometres per hour.

Thousands of houses and businesses were damaged or destroyed in the country's centre and north, and at least 11 people were killed, Vietnamese authorities told AFP on Monday.

Images published by AFP showed corrugated metal roofs blown off buildings and household debris strewn across saturated streets in Vietnam's coastal Nghe An province.

"The wind blew my roof to the sky and then it fell down, breaking everything. I had to cover my head and rushed to my neighbour's house to be safe," Trinh Thi Le, 71, in central Quang Tri province, was quoted as saying by state-run Tuoi Tre newspaper.

At least nine people were killed when a typhoon-related whirlwind swept through northern Ninh Binh province early on Monday, according to the local disaster agency.

One person was killed in the province of Hue and another in Thanh Hoa, while about 20 were missing, local and national disaster authorities reported.

Among those unaccounted for were nine people whose fishing boats were lost at sea on Sunday night after their vessels came loose from their moorings during strong winds and currents, police said.

More than 53,000 people were evacuated to schools and medical centres converted into temporary shelters ahead of Bualoi hitting Vietnam, the environment ministry said.

Four domestic airports and part of the national highway were closed on Monday. More than 180 flights have been cancelled or delayed, airport authorities said.

Parts of Nghe An and the steel-producing central province of Ha Tinh were without power and schools were closed in affected regions.

Since making landfall in Vietnam, Bualoi has weakened as it moved across the border into Laos.

It came on the heels of Super Typhoon Ragasa, which killed 14 people across the northern Philippines. (AFP)