According to Tasnim News Agency, three gunmen attacked Iranian parliament on Wednesday.

Reportedly seven people were killed, several injured and four others are being held hostage on the top floors of the building. Another terrorist group opened fire at several people in the mausoleum of Imam Khomeini. One of the attackers had set off a suicide bomb, another one was shot down by the police. No confirmed information on the casualties is available yet. There is no official commentaries about the assailants’ identity and motivation. Some sources assume that ISIS is behind the attack.