The exact cause of the fire will be known after an investigation led by the prosecutor of the Sarajevo Canton Prosecutor's Office. According to residents, the fire started when a mattress near a heater ignited, after which the flames began to spread in an apartment on the fourth floor of the residential building. A tragedy and greater material damage were prevented by the rapid intervention of three firefighting teams. All residents were quickly evacuated from their homes, and emergency services provided assistance to those who felt unwell due to the smoke that spread throughout the entire building.