Islamic State has released a video of its militants inside the Iranian parliament, apparently taking during today's siege.
Isis has already confirmed responsibility for the attack and now released a video to prove its involvement, via its Amaq News Agency.
Isis has also claimed the suicide bomb attack on a nearby shrine to Ayatollah Khomeini, widely seen as the founder of the Iranian republic.
Amaq said the attack was carried out by "martyrdom-seeking fighters with two explosive vests inside the Khomeini shrine in the center of Tehran."
The two attacks took place earlier today. The number of casualties is not yet known, although the death toll is being reported as 12 in some quarters.
It is now being reported that a three-hour siege on the Iranian parliament building has ended, with four suspects reported dead.
More information will come as it becomes available.