The incident took place in Nandni area, 35 kms from here, when the victims, identified as Somi Singh, Preeti Kaur and her 8-month-old son Honey were on their way from Gadi area in Udhampur to Jammu, they said.
Preeti and Honey died on the spot while Somi was rushed to the hospital where he was discharged after giving first aid.