A bomb is discovered and defused aboard a Kish Air flight between Ahvaz and Tehran, Iran.
A double bombing injures three police officers in Tehran, Iran.
Denmark calls on the European Union for new sanctions against Iran after Danish security services accused the Iranian intelligence service of plotting an assassination of an Iranian activist on Danish soil. Copenhagen also recalls its ambassador to Tehran.
The presidents of Russia and Iran disagree with the Turkish president's proposal for a ceasefire in Idlib after meeting in Tehran, because it would not include the Islamist militants those nations aim to defeat.
An Iranian man attempts self-immolation in front of the Tehran city hall.
Four unknown gunmen, wearing military uniforms, open fire during a military parade to commemorate the Iran–Iraq War in Ahvaz, Khuzestan, Iran, killing 25 people and wounding up to 60. Both the Islamic State and Ahvaz National Resistance claim responsibility.