http://www.hindustantimes.com/India-news/TamilNadu/Sivakasi-fire-unit-mishap-36-killed-PM-Sonia-express-grief/Article1-924845.aspx Sivakasi fire unit mishap: 36 killed; PM, Sonia express grief] (Hindustan Times, 6 September 2012) Some reports suggest the high ambient temperature in the factory, reported to be 69 Coulomb , may have been a factor.