Flash floods caused by heavy monsoon rains killed at least nine people in the past 24 hours, displaced hundreds of families in Yemen's northwestern province of Mahweet, local authorities said on Wednesday.

"Nine people have died from drowning after the severe floodings destroyed several houses and inundated others in Milhan district," the authorities' flood bulletin said.

Torrential rains and flash floods have affected several other provinces.

Last week flash floods and landslides displaced nearly 127 families in Ibb province, according to local media.

Local health authorities and the residents are in fear of the cholera spreading in the rainy season as the ongoing civil war has damaged many health facilities and disabled much of the infrastructure for clean water and sanitation.

The cholera in Yemen has set the world's highest record with the infection of one million people and over 2,000 have been confirmed dead since 2017, according to World Health Organization.