A fifth fatality has been reported in Malaysia's Johor state as heavy rain and widespread floods hit the south of the country.
Floods kill 18 more people in the South Asian nation, taking the death toll to 1,343.
The UN's World Health Organization has so far delivered $1.5 million in medicines and emergency stockpiles and is appealing for $19 million from donors.
Authorities in India and Bangladesh are struggling to ferry drinking water and dry food to flood shelters as floods continue to wreak havoc in the region.
Nearly half a million Indians have fled their homes as one of the world's largest rivers, the Brahmaputra, burst its banks in the country's northeast.
Malaysia last week experienced its worst floods since 2014, caused by days of torrential rain that overflowed rivers, killing at least 46 and forcing tens of thousands to flee.
Members of India's National Disaster Response Force continue to search for missing people after heavy monsoon rains triggered landslides and flash floods in Himachal Pradesh and Uttarakhand states.
More than 50 people have been killed, 42 of them in different districts of Uttar Pradesh after lightning struck several states across the south Asian country.
Indonesia’s meteorology agency warns the heaviest monsoon rains of the season will fall in and around the densely populated capital in the coming days.
The annual monsoon is vital to the densely populated region, revitalising land and waterways amid scorching summers. But it also causes widespread death and destruction.
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