According to officials of the state disaster management department, eight people have been killed in Muzaffarpur district and one person was killed in West Champaran district.
The floods have affected more than 3 lakh people in half a dozen north Bihar districts due to heavy rains in the catchment areas and heavy discharge into the rivers from Nepal in last few days.
The floodwater has entered over 100 villages forcing people
to abandon their homes. Official said Gandak, Kosi, Bagmati, Amla Balan rivers are flowing above the danger mark and are a threat to hundreds of thousands of people living in villages near embankments.
People have moved to safer places. They have taken shelter on the high-rise embankments, national highways and in government buildings, officials said.
Bihar Water Resources Development Minister Vijay Kumar Choudhary said all embankments were safe and there was no need to panic.
Bihar Chief Minister Nitish Kumar directed the water resources department to ensure extra vigil on vulnerable embankments of swollen rivers.