Severe floods caused by monsoon rains have killed more than 30 people and displaced tens of thousands in Malaysia and southern Thailand, with both countries preparing shelters and evacuation plans in anticipation of more heavy rain.

Malaysia and Thailand are facing a second wave of heavy rain and potential flooding this week, authorities said on Monday, even as some displaced residents were able to return home and the worst floods in decades began receding in some areas.

Malaysia is facing widespread devastation after unprecedented monsoon rain flooded swathes of the country, killing six people and forcing over 150,000 to flee their homes. The prime minister, Anwar Ibrahim,

Torrential rains have caused widespread devastation, and forecasters predict more downpours starting on Tuesday.