Silchar, July 27 -- Four people died and at least two were injured after an explosion at a metal processing industry in Assam's Cachar district spilled molten metal on workers Sunday morning, police said, even as the families of the victims and local residents alleged that this was not the first such incident, demanding a proper investigation into it. According to police, the explosion took place around 11 am at Kade Global Infrastructure LLP's metal processing unit at Pangram under Udharbond constituency. Kade Global Infrastructure LLP could not be reached for comment. Local residents rushed to the spot, followed by police, fire and emergency personnel who rescued several injured workers. While some were shifted to hospitals for treatment, others were sent home after treatment for minor injuries. There were over 100 workers in the factory when the explosion took place. "The sound was deafening. When we reached the spot, we saw that the bodies had been torn apart, with body parts scattered over a wide area," a local resident said. The deceased were identified as Appu Boraik (32), Kiron Munda (28), Shyamal Gaur (30), all residents of Udharbond and Sagar Nath from Tripura's Agartala. Police said all four died on the spot. After doctors at Silchar Medical College and Hospital confirmed the deaths, the bodies were sent for post-mortem examination, police said. "The bodies have been identified by the family members. A case will be registered and further investigation is underway," Cachar senior superintendent of police (SSP) Sanjeev Saikia said. Assam minister Kaushik Rai, who visited the spot, said a magisterial inquiry has been ordered along with a police investigation. "Details have been sought from the owners regarding safety measures," Rai said....