The accident occurred last night near Rehrai and Sunkai village when the speeding truck rammed into the jeep in which the victims were returning home after attending a ring ceremony in Sarmathura, Superintendent of Police, Dholpur, Rajesh Singh told PTI.
The deceased have been identified as Babulal (60), Rameshwar (55) and Anshu (8), all residents of Umreh village falling under Badi police station area, the SP said.
Police have seized the truck and registered a case against the accused driver who fled away from the spot.