On Wednesday morning, a missile strike was launched by Iran's Islamic Revolutionary Guard (IRGC) targeting US military facilities in Erbil, Iraq and the country's Ayn al-Asad Air Base, which houses American military forces. Another series of rockets was fired later, according to Iranian media reports.
There has been no retaliatory strike from the United States yet.
Last week, Commander of the IRGC's elite Quds Force Qasem Soleimani was killed in a US drone strike ordered by US President Donald Trump at the Baghdad International Airport. In response, Iranian President Hassan Rouhani swore that Tehran would avenge his death.