The Iranian Intelligence Ministry has said, the mastermind behind the terrorist attacks in Tehran has been killed.<br/>'<br/>Tasnim news agency quoted Iranian Intelligence Minister Mahmoud Alavi as saying that main commander of terrorist attacks was killed today by the security forces. <br/>'<br/>At least 17 people were killed and 52 others injured in Tehran on Wednesday when gunmen mounted simultaneous assaults on Iran's Parliament and Mausoleum of Ayatollah Khomeini. ISIS had claimed responsibility for the attacks.