This is the dramatic moment debris was seen flying through the air during Typhoon Ragasa carnage in the Philippines.

Footage captured by Jsozo Ruedas shows pieces of roofing torn from nearby houses swirling in mid-air amid torrential rain and powerful gusts of wind in Olongapo, Zambales on September 23.

A woman can be heard screaming in fear as residents looked on.

Some areas of the city were inundated, while two tornadoes striking a residential area and a public market were reported in the province.

Ragasa, locally known as Nando, made landfall in the country's remote and poverty-stricken Babuyan Islands in the province at 3 pm local time on Monday. It arrived as the Philippines continues to grapple with weeks of severe flooding brought on by an unusually intense monsoon season.

The region's low-lying geography, inadequate drainage systems, and rapid urbanisation make it especially vulnerable to flooding.

Limited infrastructure often struggles to handle the heavy rainfall, resulting in widespread flash floods.

State weather bureau PAGASA left the Philippine monitoring zone at 8 am today after temporarily displacing thousands of residents. Authorities said one person was killed and seven were injured in a landslide in Benguet province.

Ragasa was expected to remain in the South China Sea until Wednesday, passing south of Taiwan and Hong Kong before touching down on the Chinese mainland.