"This is an absolutely unprovoked aggression against Iran," Putin told Araghchi

Iranian authorities have arrested 41 suspects in connection with this week's attacks in Tehran, the interior ministry says.

Iran denounces Donald Trump's reaction to deadly Islamic State group attacks in Tehran as "repugnant" after the US president warned the nation is reaping what it sows.

Iran's Revolutionary Guards say Saudi Arabia and the US are behind twin attacks in Tehran that killed at least 12 people and injured 43.

Gunmen and suicide bombers storm Iran's parliament and the shrine of its revolutionary leader, killing 12 people in the first attacks in the country claimed by the Islamic State group.