Tehran — Suicide bombers and gunmen attacked Iran’s Parliament and the mausoleum of Ayatollah Khomeini in Tehran on Wednesday morning, killing at least 12 people in a twin assault at the heart of the Islamic Republic, Iranian officials and media said.
The Islamic State group claimed responsibility and released a video purporting to show gunmen inside the Parliament building and one man, who appeared wounded, on the floor.
The attacks were the first claimed by the hard-line Sunni Muslim militant group inside the Shiite Muslim country. Iran is one of the powers leading the fight against Islamic State militants in neighboring Iraq and, beyond that, Syria.
Attackers dressed as women burst through Parliament’s main entrance in central Tehran, Deputy Interior Minister Mohammad Hossein Zolfaghari said, according to the semi-official Tasnim news agency.
“One of them was shot dead and another one detonated his suicide vest,” he said.
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About five hours after the first reports, Iranian news agencies said four people who had attacked Parliament were dead and the incident was over.
At least 12 people were killed by the attackers, the head of Iran’s emergency department, Pir-Hossein Kolivand, was quoted as saying by state broadcaster IRIB.
“I was inside the Parliament when shooting happened. Everyone was shocked and scared. I saw two men shooting randomly,” said one journalist at the scene, who asked not to be named.
Soon after the assault on Parliament, another bomber detonated a suicide vest near the shrine of the republic’s revered founder, Ayatollah Khomeini, a few kilometers south of the city, Zolfaghari said, according to Tasnim.
A second attacker was shot dead, he said.
The Intelligence Ministry said security forces had arrested another “terrorist team” planning a third attack, without giving further details.
The attacks took place less than a month after the re-election of President Hassan Rouhani, a moderate, whose landslide victory defeated candidates supported by the hard-line clergy and the Islamic Revolutionary Guard Corps, which is responsible for national security.
“The atmosphere is tense. It is a blow to Rouhani. How can four armed men enter the Parliament, where a very tight security has always been in place,” said a senior official, who asked not to be named.
The Intelligence Ministry called on people to be vigilant and report any suspicious movement. Despite unconfirmed reports of a hostage situation, state television said Parliament had resumed, and it broadcast footage of what it said was the opening session proceeding normally.
“Some coward terrorists infiltrated one of the buildings of Parliament. They were confronted. It was not a major issue. Our security forces have taken necessary steps,” Parliament speaker Ali Larijani said in an open session broadcast live by state TV.
Attacks are highly rare in Tehran and other major cities though a Sunni militant group named Jundallah and its splinter group Ansar al Furqan have been waging a deadly insurgency, mostly in more remote areas, for almost a decade.
Iran’s restive Sistan and Baluchestan province, in the southeast on the borders with Pakistan and Afghanistan, is home to the Balouch minority and has long been a hotbed of Sunni insurgents fighting the Shiite-led Islamic Republic.
Last year Iranian authorities said they had foiled a plot by Sunni militants to bomb targets in Tehran and other cities during the Muslim holy month of Ramadan.
The Islamic State group has often urged its fighters to attack Iranian targets and lambasted “heretic” Shiite Iran for helping the Syrian and Iraqi governments battle IS, which considers Shiites to be infidels.
The video released by the IS news agency Amaq included an audio track of a man saying: “Oh God, thank you. … Do you think we will leave? No! We will remain, God willing.”