The first mass burials will begin at 3 pm (1500 GMT) in Waterloo, in the Western area of Sierra Leone.
The first mass burials of victims of Sierra Leone's devastating floods and mudslides took place on Thursday, as blame grew over government "inaction" over deforestation and poor urban planning.
As it emerged that at least 105 of the dead were children, citizens and experts alike questioned why the government of President Ernest Bai Koroma had not done more to tackle illegal construction in the overcrowded capital Freetown.
A Red Cross official said meanwhile that smaller mudslides had occurred since Monday in eastern Freetown and in Sierra Leone's second city of Bo, with the rainy season far from over.
"There is a fear that more trouble is imminent," in Freetown, a coastal city of around one million people, said Adbul Nasir of the International Red Cross.
The disaster began on Monday when heavy rains hit the city and the partial collapse of a hillside triggered mudslides, engulfing homes and wreaking destruction.
Although the death toll is officially 300, rescue workers privately agree the toll is far higher. An unofficial morgue toll put the number of deaths from at 400.
The UN has said 4,000 people are affected by the mudslides and flooding.
Citizens were given the deadline of Wednesday evening to identify their loved ones at the overflowing central morgue, and the first mass burials will begin at 3 pm (1500 GMT) in Waterloo, a nearby town where many victims of the Ebola crisis that hit the nation in 2014 were also laid to rest.
The burial of bags filled with body parts has already taken place but Thursday marks the first burials of corpses in a ceremony to be attended by Koroma.
"No place to sleep"
For the thousands of survivors left homeless, UN agencies distributed food and hygiene kits to those sheltering in government centres and in the homes of neighbours and family members.
The UN Office for the Coordination of Humanitarian Affairs (OCHA) said 3D mapping of affected neighbourhoods was taking place around Sugar Loaf mountain, which partially collapsed on Monday, and said voluntary evacuations may extend to more areas, potentially increasing the number of displaced.
"We have no place now to sleep, only in a neighbour's house," said Abdul Bendu, in the Pentagon community, which sits directly below the devastated hilltop village of Regent.
He estimated that 100 people from his community alone had been killed by mud, falling rocks and floodwaters.
UNICEF called the damage "unprecedented" on Thursday and warned children were at risk, while the UN humanitarian affairs office said four registration centres for unaccompanied minors had been established.
"Children have been left homeless, vulnerable and terrified," said UNICEF Representative Hamid El-Bashir Ibrahim.
Others began to ask why such a tragedy was allowed to happen in the first place, given the clockwork regularity of annual flooding in Freetown.
"I think it's the deforestation," said resident Samuel Lackoh, speaking to AFP in Pentagon.
In recent years, trees have been cut down from the Western peninsular forest on Freetown's limits, with everything from shacks to mansions springing up on the slopes.
Jamie Hitchen, an expert with the Africa Research Institute, told AFP that poor urban planning had been a problem for years, but that the government response had "broadly been one of inaction".
"Particularly in the areas around Regent, construction of houses illegally is being undertaken at all levels of society with impunity," he said in an email to AFP.
Identifying deficiencies in waste management, preventing deforestation, urban planning and the provision of decent housing, Hitchen said "a problem of politics" meant that the city's drains were blocked and dump sites were full.
"There is no urban planning to speak of in the city," he added.
The government has said that in the light of the catastrophe, "relocation and opening up of a new settlement around the Freetown peninsula" would be considered, but similar measures have failed in the past as people seek to live close to the city centre for work.
A looming knock-on effect of stagnant water pooling could be a cholera risk, said British charity Oxfam, which is distributing clean water and hygiene kits to the homeless.
Sierra Leone, a former British colony, meanwhile received condolences from Queen Elizabeth II, who said she was "deeply saddened to learn of the terrible flooding and landslides in Freetown that have led to the deaths of so many people."
Hull, a British city which is twinned with Freetown, has launched its own aid appeal, joining foreign governments including Guinea, Israel, Liberia, Senegal and the EU in sending food and cash to the stricken city.
Sierra Leone ranked 179th out of 188 countries on the UN Development Programme's 2016 Human Development Index, a basket of data combining life expectancy, education and income and other factors.