Several faculties are located in the Yerevan State University (YSU) building where the explosion took place, the Faculty of Chemistry is also there, but the room that was burned has nothing to do with any chemical substances. YSU spokesperson Knar Misakyan told reporters about this on Friday. She noted that the circulating theory that chemicals were the cause of this explosion is wrong. "Corresponding actions are being carried out now, the area is being investigated; no chemical substance has been burned. According to preliminary information, there was an electricity problem," the YSU spox said. She noted that the students and employees were evacuated from the aforesaid building, but the classes continue in the other YSU buildings. Earlier, we informed that a fire broke out in a room on the basement floor of the 1st building of YSU, after which there was an explosion. According to preliminary data, there is one casualty and several injured. The victims are administrative employees. Earlier, we reported that a fire broke out at YSU. According to preliminary data, one person died, and three people were hospitalized. And the National Center of Burns and Dermatology in Yerevan informed Armenian News-NEWS.am that two people—Seyran Bichakhchyan, 70, and Aharon Hakobyan, 65—were brought to them. They were bandaged there and transferred to Armenia Medical Center. They had polytrauma, multi fragmentary injury, third-degree chemical burns.