In Chhattisgarh, naxalites blasted a tehsil building in the Dantewada district last night. According to police sources naxalites damaged the newly constructed building in Kuakonda. No human casualties have been reported in the incident. Naxalites also set a conveyor belt on fire in the same district this morning. According to sources, the conveyor belt belonged to a private company engaged in iron ore shipment in the Kirandool area of the district. CISF jawans have since reached the spot.