An unidentified group has set two excavators on fire at Ghansikuwa-6 in Tanahun district on Sunday night. According to the Assistant Sub-Inspector at the District Police Office, Tanahun, Suresh Subedi, both excavators, used to extract limestone, were completely damaged by the fire. The excavators were belonging to Lalit Sarobhogi of Parsa District, it is learned. Search for those involved in the incident is underway, added Subedi.