Several attackers raided the shrine of the late founder of the Islamic Republic, Imam Khomeini, South of the capital Tehran. The attackers started a shooting at the visitors of the shrine, One of the attackers detonated himself in front of a police station opposite the shrine.
"Five of the arrested terrorists earlier left Iran and conducted terrorist activity in Raqqa and Mosul. Last year, they returned to the country under the leadership of the commander, Abu Aish, to carry out terrorist attacks in the holy places of Iran," a statement by the Iranian Security Ministry obtained by Sputnik said.
"The [Iranian] security services eliminated Abu Aish, else, left Iran in fear. Then, part of them returned and committed yesterday's attacks."
Moreover, a woman rom southern regions of Iran who had supposedly helped terrorists was detained. "She helped others, sent them to their missions after the start of the attacks, a member of the Iranian committee of national security of the parliament told Mehr news agency.
Daesh terrorist group has claimed responsibility for the terrorist attacks.
Earlier in the day it was reported that the number of casualties from the twin attacks in the Iranian capital on Wednesday has grown from 16 to 17 people dead.
Earlier, the Iranian Intelligence Ministry announced that three terrorist teams attempted to launch attacks in different parts of Tehran on Wednesday, FarNews reported adding that members of a terrorist group were arrested before taking any actions.