After the incident, police arrested the assassin and the station's activity returned to normal.
An intelligence source told Mehr correspondent that the fighting took place on Saturday morning at the subway station, where agents of the 9th security police and the 9th Security Police station were present and shot to secure the situation.
He reported the arrest of the elements of the conflict and added: "Further investigations of the arrestees in this area are ongoing and the situation is normal.
After the shooting, the subway train closed for a while to keep passengers safe.