Two terrorist attacks were simultaneously carried out on 7 June 2017 by seven terrorists belonging to the Islamic State of Iraq and the Levant ( ISIL ) against the Iranian Parliament building and the Mausoleum of Ruhollah Khomeini , both in Tehran , Iran , leaving 17 civilians dead and 43 wounded . The shootings were the first terrorist attacks in Tehran in more than a decade , and the first major terror attack in the country since the 2010 Zahedan bombings . This was also the first time ISIL carried out a " successful " terrorist attack in Iranian soil and it triggered significant reactions both domestically and internationally with expected global consequences
2010 Zahedan bombings
2010 Zahedan bombings
Reactions to the 2017 Tehran attacks