An Islamic State spokesman released a statement Wednesday threatening more attacks against Iran, days after the group claimed responsibility for a mass shooting at a military parade that left at least 25 dead.
Iran's security is "flimsier than a spider's web, and with God's help, what comes will be worse and more bitter," Abu al-Hassan al-Muhajir said in a statement released through the Telegram messaging app.
The Iranian government has blamed the attack on "jihadist separatists" within the country.
IS released a video shortly after the attack purporting to show the three gunmen who committed the massacre, but some observers said they did not match the appearances of the attackers.
VOA could not verify the authenticity of the video.
