Daltonganj: A JCB machine, owned by a person named Ashok Prasad, was set on fire by unidentified miscreants at the Thema village under the Satbarwa police station on Friday night. ASI Rishabha Garg said, “Our preliminary investigation suggested that it was the handiwork of some individuals and not any criminal gang or the Maoist.” Police said Prasad received an extortion call on Friday. TNN