Sivakasi: Five workers were today injured, three seriously, in a blaze in a fireworks unit here, police said.
Police suspect that mixing of extremely dry chemicals for fancy fireworks items could have triggered the fire at the cracker unit in a nearby village.
Three of the injured have suffered 70 per cent burn injuries and are in a serious condition, they said.
Fire service units rushed to the spot and doused the flames.
Sivakasi is the hub of the cracker manufacturing industry in India with almost 90 per cent of fireworks supplied in India being from here and Virudhunagar.