A firework ignited acoustic foam in the Kiss Nightclub Brazil 2013. 242 died. Owners and band members condemned. Some 1 200 people were in the Kiss Nightclub, Santa Maria, Brazil, 27th January 2013, when the band Gurizada Fandangueira lit pyrotechnic flares on stage. Sparks from one flare ignited sound insulation foam on the ceiling and within seconds the fire spread and rapidly engulfed the club. Court findings indicate that the venue had no functioning fire extinguishers, only two emergency exits and poor emergency signage. 242 people died and over 600 were injured. On 10th December 2021, two owners of the nightclub and two members of the band were condemned to 18 to 22 years in prison, but then released immediately as their lawyers lodged appeals.
BBC News 11/12/2021 https://www.bbc.com/news/world-latin-america-59617508
Photo: By Leandro LV – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=24477308