An estimated, 4,000 families have been moved to safety
Thousands of people in Cox's Bazar Rohingya camps and host communities are facing the risks of flooding and landslides after several days of heavy rain, Unicef said on Tuesday.
An estimated, 4,000 families being affected in the camps, have been relocated to safety.
It noted that more than 500,000 Rohingya children are in need of humanitarian assistance.
"Conditions in the camps and host community are deteriorating because of bad weather," acting Unicef Bangladesh Representative Alain Balandi Domsam was quoted as saying in a press release.
He said the humanitarian demands are likely to increase over the coming days.
In partnership with other agencies, Domsam said Unicef has ramped up distribution of essential supplies among children and families.
According to reports, one seven-year-old boy drowned following heavy rain, and two children have been injured.
Vital infrastructure on which children depend has also been damaged or destroyed.
So far, five Unicef-supported children's learning centres were heavily damaged and over 750 were partially damaged, interrupting learning opportunity of more than 60,000 children, Unicef said.
At least 12 child protection centres were damaged and one playground was completely submerged after incessant rainfall.
At least 47 water distribution points and some 600 sanitary-latrines have been affected or damaged, increasing the risk of diarrhoea and other water-borne illnesses, to which children are vulnerable.
"As the rains continue, so does the risk of water contamination, and affected people, especially children, falling sick of waterborne diseases," said Berta Travieso, acting chief of Unicef Cox's Bazar field office.
Unicef and its partners have begun restoring essential services and learning centres to ensure continued education for children.
Mobile medical and nutrition teams are also ready for deployment to monitor the health situation of children and mothers in the camps.
Unicef has appealed for $152.5 million to support the UN agency's humanitarian effort for Rohingya children and those affected in host communities in 2019.
The current funding gap is $68.7 million.