The cause of the fire at the refinery in Tehran According to the monitoring of Vafiim Mezikuf and Shidir, the flame and smoke seen from south of Tehran are related to the refinery in Tehran. The burning flame is also due to the increase in fire flares. According to preliminary information, the sudden power outage led to the shutdown of the refinery and then to an increase in flare-ups. Refinery officials are investigating the reason for the power outage tabanak.ir.