According to fire authorities, the fire broke out at around 3 p.m., and about 70 firefighters, along with approximately 50 vehicles including pump trucks and other equipment, were deployed to extinguish the fire.
Three workers including a woman in her 40s were treated for minor symptoms after inhaling smoke. Another worker became trapped on the roof but was rescued by firefighters.
The fire reportedly started on the factory's production line, where about a dozen employees were on shift.
Police are conducting a search for any potential victims and plan to investigate the exact cause of the fire once the flames are under control.
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