The deceased have been identified as Devendra Lamtari,17, of Deurali in Ribdikot rural municipality. Lamtari died in course of treatment at the Lumbini Zonal Hospital, according to District Police Office.
The accident reportedly took place as the tipper (Na. 1 Kha. 9005) was heading towards Palpa from Butwal. It fell around 35 meters off the road.
The injured are undergoing treatment at the local hospital.