<span style="color: #222222;">At least five people were killed in a blast at a firecracker unit of Tamil Nadu. </span><br />'' <br />'' <span style="color: #222222;">The blast occurred at the unit in Varaganur near Sivakasi this afternoon. Four of the victims were women. </span><br />'' <br />'' <span style="color: #222222;">Four others sustained serious injuries and have been admitted in a nearby hospital. Fire tenders rushed to the spot and extinguished the fire after fighting for more than an hour.</span><br />''