The dam of Saptakoshi river (Kosi River) at Dumribot in Lahurekhoch of Belka Municipality-8, Udayapur has burst following incessant rainfall on Wednesday in Nepal. Several settlements in Belaka Municipality of Udayapur district and Barahachhetra Municipality of Sunsari district have been inundated as the Saptakoshi eroded the western embankment and entered the settlement on Wednesday.