>> Gunfire, in Iran's parliament. Half hour later, a suicide bomb attack at a prominent mausoleum. Tehran rocked by twin attacks on Wednesday, since claimed by Islamic State. At least twelve people reported dead. It is a rare attack in the Shia Islamic republic, and the first claimed by the Sunni extremist group.
IS released a video claiming to show the attack and apparently shot by one of its gunmen via it's news agency Amaq.
> Do you think we will leave, an unseen voice says. No, we will remain, God willing. Iran's Revolutionary Guards have laid the blame at regional rival Saudi Arabia's door.
In a statement, the guard said IS's apparent involvement serving as proof of Saudi Arabia's culpability. Saudi Foreign Minister Adel al-Jubeir responded that he did not know was responsible and there was no evidence that Saudi extremists were involved. The assault began when gunmen dressed as women forced their way through the Parliament's main entrance.
Iran's Deputy Interior Minister was quoted in saying, inside, the men, some armed with assault rifles, opened fire, shooting randomly, said one journalist who witnessed the violence, another detonated suicide vest. Soon after that assault, another bomb detonated a suicide vest near the mausoleum of the founder of modern Iran, Ayatollah Khomeini.
A second attacker at the shrine, reportedly shot dead. Five hours after the assault began, Iranian news agencies reported that all four attackers in Parliament were dead. Iran is one of the powers leading the fight against IS militants in neighboring Iraq and beyond that, Syria. IS has often urged its fighters to attack Iranian targets.
Questions now being ask about how security at Parliament was breached, and how President Hassan Rouhani will respond, just two weeks after his reelection.