Parts of Thailand are battling record floods, which have killed at least 33 people and prompted authorities to deploy military ships and helicopters to support relief efforts, BBC reported.

The deluge has hit ten provinces across the country's south over the past week, with the city of Hat Yai, a business hub bordering Malaysia, recording its heaviest rainfall in 300 years - 335mm in a single day.

Photos show vehicles and houses submerged in the city, while desperate residents await rescue on their rooftops.

Relentless rains have also ravaged neighbouring countries. In Vietnam, the death toll has risen to 98 in a week, while in Malaysia, more than 19,000 people have been forced from their homes, according to BBC.