After the Saptakosi river damaged dams in western Kusaha region of Sunsari district, Monday, over 25,000 people have been displaced.
A section of East-West highway in Laukahi area has also been obstructed due to the flood.
As the swollen river started to erode the dams and inundate the nearby villages, tens of thousands of local people have fled their homes for safety.
Reports say that people from at least six VDCs - Laukahi, Kusaha, Ghuski, Sripur, Haripur and Basantapur - have been displaced. Some of them are taking shelter in local schools in the are.
The flood has affected the buffer region of Kosi Tappu Wildlife Reserve. An army battalion located there for its safety, too, had to shift to safety.
Local people have accused the authorities of not acting on time to avert the disaster.
Meanwhile, in Kathmandu, Khomraj Dahal, director general of Water Induced Disaster Prevention Department, told Kantipur that the disaster occurred due to lack of repair and maintenance of barrage. As per the Kosi agreement, India is responsible for operation and maintenance of the Kosi barrage