An unidentified group torched 2 excavators and a oil tanker in Katari municiaplity-8 of Udayapur on Saturday night. The torched excavators and oil tankers were being used for lime mining by Saurya Cement Industries. At the time of the incident the oil tanker contained 6000 liters of oil. Operator of Siddhi Multipurpose Dinesh Katuwal informed that all the vehicles were completely destroyed in the arson. Chief of Area Police Office Katari Dhruva Kumar Shrestha informed that police are investigating on the incident.