Staff Reporter DINDIGUL: Stern action will be initiated against persons who engage in burning of tyres, plastic and rubber items during Bogi festival, the penultimate day of Pongal festival. Unrestrained burning of tyres and plastic items would produce dense smoke and toxic fumes polluting air, water and soil, Collector R. Vasuki said here on Sunday. Several toxic fumes released at the time of burning of tyres have the capacity to cause considerable damage to health and might even lead to cancer.