During the 2017 Tehran attacks on the Islamic Consultative Assembly (Iran's parliament) and the Mausoleum of Ruhollah Khomeini 18 people died (excluding the attackers). The responsibility was claimed by ISIL. The Iranian Islamic Revolutionary Guard Corps (IRGC) subsequently vowed retaliation for the attacks. Supreme Leader of Iran seyed Ali Khamenei stated on his website that Iran would "slap its enemies" in connection with the Tehran attacks. Hours before the missile strike, Iranian Army's rapid response forces were deployed in the country's western border areas.