A group of 50 armed Maoists raided the Kudag mines (in Chhattisgarh's Balrampur district) and adjoining Kukud mines (in Jharkhand's Latehar district) between 1 am to 2 am, a Balrampur district police official told PTI.
Balrampur is located around 400 kms away from here in the northern part of Chhattisgarh.
The mines are located on either side of a road on the inter-state border, the officer said.
While a poclain machine, one truck and a hyva truck were torched in Kudag area which falls under Samri police station limits, two poclain machines and one loader machine were set ablaze in Kukud area in Latehar, he said.
Maoist also blew up a weigh-bridge unit at both Kudag and Kukud. No one wasreported to be hurt in the incident, he said.
However, two guards who were on duty in the area, were beaten up by ultrasbefore fleeing from the spot. A police team rushed to the spot and a search operation was launched in the region to trace the ultras, he added.