An Iranian official appeared to mock President Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE on Twitter as Tehran launched missiles at two bases in Iraq housing U.S. forces in retaliation for the death of a top Iranian general.

Saeed Jalili, a top nuclear negotiator for Iran and a representative to the country's top security council, tweeted an image of the Iranian flag.

Days earlier, Trump posted an image of the U.S. flag following initial reports of a U.S. drone strike that killed Gen. Qassem Soleimani, former head of Iran's Quds Force, outside Baghdad International Airport.

The U.S. strike resulted in days of protests in Iran, and a demand from many of Iraq's lawmakers for U.S. forces to withdraw from the country.

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Trump is reportedly set to address the nation Wednesday on the situation with Iran, while Iran's foreign minister released a statement calling the missile attacks "proportionate measures in self-defense" in a tweet.

"We do not seek escalation or war, but will defend ourselves against any aggression," Mohammad Javad Zarif added.

U.S. and Iraqi officials reported no casualties from the Iranian missile attacks.