Severe floods have displaced thousands of residents and destroyed homes and crops, worsening the plight of the poorest communities in Kelantan.

There are worries in Malaysia and neighbouring Thailand that disastrous flooding could get worse as more rain comes.

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.