10 June, 2017
The attackers killed seven people and wounded several others, Tasmin said.
The attackers raided Iran's parliament and Ayatollah Khomeini's mausoleum on Wednesday morning.
Following the twin attacks, the White House issued a brief statement that offered sympathy and criticism while accusing Iran of supporting terror.
The Islamic State has claimed responsibility for the attacks.
On Thursday, Iran's Intelligence Minister Mahmoud Alavai said investigators were working to determine whether Saudi Arabia had a role in Wednesday'sattacks but said it was too soon to say if that was the case.
The attacks have been claimed by Islamic State but Iranian hardliners believe that Saudi Arabia was behind the attacks, Omid Nouripour, the foreign affairs spokesman for the German Green Party, told German broadcaster RBB. Security officials had found explosives in his hideout and claimed that his group had designated 50 locations inside Tehran for attacks. Saudi Arabia dismissed the accusation.
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It suggested that there were only five attackers rather than the six originally reported.
They meant to carry out attacks at religious sites but were thwarted after key members of their cell were apprehended.
"These fire-crackers that happened today will not have the slightest effect on the will of the people", Ayatollah Ali Khamenei said after the twin attacks, which also left dozens injured. His message is believed to be directed at Saudi Arabia.
The announcement reassures that the other elements of ISIL terrorist group related to Wednesday attack were identified and arrested before managing to do anything. "Last year, they returned to Iran.to carry out terrorist attacks in the holy cities of Iran", the ministry added in a statement on state news agency IRNA.
It spread to the heart of the Gulf this week as the Saudis led a drive to isolate Qatar, blaming their neighbour for ties with Iran and militant groups, and closing its land border.
The U.S. Senate advanced on June 7 a package of new sanctions on Iran to punish Tehran for its ballistic missile program, arms transfers, and support for militant groups in the Middle East.
Saudi Foreign Minister Adel Al-Jubeir said he did not know who was responsible for the attacks and said there was no evidence Saudi extremists were involved.