BELAGAVI: Three labourers died on the spot after an oil-filled tanker ran over them while they were engaged in road construction on the Pune-Bengaluru four-lane NH near Itagi Cross in Kittur taluk Sunday.The deceased were Ramanna, Mahesh, and Ramachandra, all of Kalaburagi. Three other workers, who were injured, were taken to the hospital. A case was registered. The tanker that ran over the workers overturned on the service road. Condition of the driver is also critical.