'ISIS will stay here until doomsday': Islamic State publishes video allegedly from Tehran attack

ISIS' official news outlet Amaq posted a video featuring two apparent terrorists, one toting a gun, from inside the attack on the Iranian Parliament in central Tehran, for which the group claimed responsibility.

The group also claimed a simultaneous suicide bombing carried out at a religious shrine for Ayatollah Ruhollah Khomeini, the founder of the Islamic Republic, outside of the capital. At least seven people were killed in the twin attacks, according to Iranian media.

The group said that the footage was filmed by one of its fighters, from inside of the Parliament, where sirens were blaring and there was at least one casualty lying on the floor, covered in blood.

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"Praise God. Do you think that we will leave? We will survive, with the permission of God," said an unidentified voice in the video. "ISIS will stay here until doomsday."

Gunshots were also heard.

"ISIS will stay here until doomsday," repeated another man in the video.

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