Iranian media outlets reported hearing the sound of an explosion at the Shah Cheragh Shrine in Shiraz.
Videos showing civilians fleeing near the shrine, previously targeted by ISIS, have been circulating.
According to the ILNA news agency, people have taken shelter on rooftops out of fear.
However, some official sources have denied any explosion. ISNA quoted Ismail Qazlasefeli, deputy for political and security affairs of Fars province, stating, “No explosion occurred...