The U.S. airstrike on Sunday
The United States Air Force carries out strikes using F-15E Strike Eagle jets and drones in Iraq and Syria in retaliation for the death of an American civil contractor in a rocket attack on K-1 Air Base in Kirkuk Governorate. The strikes were targeted at the Iranian-backed Kata'ib Hezbollah militia group. A spokesman for Kata'ib Hezbollah, says 19 of its fighters were killed and 35 injured in the American strikes, while vowing to respond.
Sources: France 24 Reuters The Washington Post