The driver of a speeding SUV, moving from Mairabari to Tezpur, lost control of the vehicle and skidded off the road and fell into a ditch at Sunaribali under Samaguri police station, police said.
A school student, identified as Rabia Khatoon, died on the spot and five others injured were admitted to the hospital in a serious condition.
In another incident, an army vehicle hit a motorbike killing a rider and seriously injuring another at Kaliabar Tiniali.
In another road mishap, a five-year old girl, identified as Ankita Kathazarika was crushed to death by a speeding truck in Balijan under Gohpur police station in Sonitpur district.