CHENNAI, April 21 -- Families of the victims in the Tamil Nadu firecracker unit blast that claimed 25 lives said on Monday that the factory did not follow prescribed safety guidelines. Sahadevan, a resident of Kariappatti, whose uncle was one of the victims, said the firecrackers unit in Virudhunagar district did not follow the guidelines, which include not operating on Sundays. "It is like that one bad day, this incident occurred," he added. He added that as per rules there should be at least 10-metre distance between the fire cracker manufacturing rooms to prevent spread of fire. "That was not the case in this factory and around 20 people were working in a room which could accommodate five to six people as per norms," Sahadevan said. Karuppusami, a resident of Servaikaranpatti village, who lost his sister in the incident, said a lot of raw materials like explosives were kept in the rooms. "Normally, a lot of raw materials and explosives were kept in the adjacent room. But even a small spark might have caused the incident," Karuppusami added. Mariselvam, who lost three relatives, alleged fire tenders took 45 minutes to reach the village, and by that time, several workers had died. Another six were admitted to the hospital on Monday with severe burn injuries, officials said, adding that they would be conducting DNA tests to identify them. Chief minister MK Stalin has ordered a high-level probe into the incident....