Iran arrests seven Tehran attack suspects

Iranian authorities have arrested seven suspects for supporting the Islamic State-claimed dual attacks that killed 17 people in Tehran.

"These agents who were supporters of the two terrorist groups and had full co-ordination with them were arrested and they were delivered to Tehran's judicial and security authorities," State TV's iribnews.com quoted provincial chief justice Ahmad Fazelian as saying on Saturday.

The Islamic State group claimed responsibility for dual attacks Wednesday on Iran's parliament and the shrine of Ayatollah Ruhollah Khomeini.

On Thursday, authorities said the assailants were Iranian nationals and they had arrested six suspects, including one woman, since the attacks.

More than 40 people were wounded in the attack.