RAJBIRAJ, Aug 11: Floods have wreaked havoc in Saptari district once again, inundating around 1,500 houses and displacing over 350 families. According to the local level officers, the entire southern part of the district has been submerged in water. They say that Kobsain, Banarjhula, Tilathi, Belhi, Hanumnagar, Kankalini and other areas have been severely affected by the floods.