Images show 'mushroom cloud' after explosion in fire at industry in Itaquaquecetuba Images recorded during a large fire at a solvent industry in Itaquaquecetuba, in Greater São Paulo, show a mushroom-shaped cloud formed after an explosion in the early hours of this Wednesday (5). ?? The fire started on Tuesday afternoon (4). According to the Fire Department, the flames were isolated around 9 pm, with no risk of spreading. On Wednesday morning, there were still fires at the company, but there was no risk to neighboring buildings. ? Click to follow the g1 Mogi das Cruzes e Suzano channel on WhatsApp The images show a large column of fire and black smoke that rises quickly and forms a mushroom-shaped cloud. According to Fire Department lieutenant Olívia Perrone, the phenomenon was caused by the combustion of flammable liquids stored in the company. The site stored around 2 million liters of flammable products, including toluene, hexane, ethyl alcohol, ethyl acetate, butyl acetate and resins. Mushroom cloud recorded during Itaquaquecetuba fire Reproduction / Diego Dias According to the officer, the burning liquid releases flammable vapors which, when they come into contact with an ignition source, also combust. The lieutenant stated that, when these vapors are confined, the increase in temperature raises the pressure until it breaks structures, such as manhole covers, doors and other barriers. If they are in an open place, these clouds ignite and also catch fire, causing this explosion effect in the air", he explained. Video shows mushroom-shaped cloud during fire in Itaquaquecetuba industry Reproduction / Diego Dias The lieutenant stated that, when these vapors are confined, the increase in temperature increases the pressure until it breaks structures, such as manhole covers, doors and other barriers. "The pressure will always escape through the most fragile place, coming into contact with oxygen and causing an explosion, due to the release of pressure, and fire, caused by contact with oxygen." According to the firefighter, this is the same mechanism that caused the manhole explosions recorded during the fire. Explosion of manholes Smoke comes out of manholes during fire in Greater SP Images recorded during the fire also show smoke coming out of manholes in streets close to the industry. According to the Fire Department, the flammable liquid flowed into the rainwater system, where the vapors accumulated and combusted, causing the explosions. Fighting the fire Almost 80 firefighters spent Tuesday night fighting the fire at the chemical industry in Itaquaquecetuba. Neighboring factories remain evacuated, and the area remains isolated. The fire hit the factory located on Estrada do Bonsucesso, in the Rio Baixo region. Check out the scene of the fire Arte / g1 More than 30 vehicles and around 80 firefighters were mobilized to fight the flames. According to the corporation, the work prevented the fire from reaching other areas of the company and neighboring properties. Watch more news about Alto Tietê