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CCTV shows Iran terror attack unfold

CCTV shows Iran terror attack unfold

Security cameras captured the start of the deadly rampage on Wednesday when gunmen stormed Iran's parliament building.

Iran says 17 people were killed when gunmen by the suicide bombers who targeted the building in Tehran.

Iran says the attackers, all of whom were killed, were Iranians who had joined Islamic State.

It is the first time the terror group has claimed responsibility for an attack in the country.

Wednesday's attacks on Tehran's parliament complex and the shrine of revolutionary leader Ayatollah Ruhollah Khomeini, which also wounded more than 50 people, were the first claimed by IS in Iran.

"The five known terrorists... after joining the Daesh (IS) terrorist group, left the country and participated in crimes carried out by this terrorist group in Mosul and Raqa," the intelligence ministry said in a statement.

It suggested there were only five attackers rather than the six originally reported.

An official said previously that those who attacked the parliament complex had been dressed as women.