BAGHDAD -Iran-aligned Iraqi armed group Kataib Hezbollah warned on Sunday it would resume attacks on U.S. troops in the region if the United States intervenes in the conflict between Israel and Iran.

Donald Trump has warned that the US may enter the escalating war ­between Israel and Iran, as each side accuses the other of ­targeting civilians, and hundreds of Australians stranded in both countries plead for help to leave the region.

Iran’s President Masoud Pezeshkian urged Iraq on Sunday to block Israel from using its airspace and territory to launch attacks on the Islamic republic.

An explosion occurred in Erbil, the capital of the Kurdistan Region of northern Iraq on Sunday evening, the third day of the Israel-Iran war. Residents said the explosion was caused by a drone and images appeared to show an object on fire falling from the sky.

Iran and Israel have launched a fresh wave of attacks on each other in a development that continues to raise fears of the wider region being plunged into a destabilising conflict. Iranian missiles struck Tel Aviv and the port city of Haifa shortly before dawn on Monday,

Fear and worry grip Iranians as Israel vows to continue attacking the Islamic Republic over its nuclear program, with many fleeing the bigger cities, including the capital Tehran, in search of safer areas.

Salami was killed in the first Israeli strikes, along with other key commanders. Although Iran replaced the commanders quickly, it took hours for it to get its ballistic missiles ready for launch. Over the last four days, Iran has much of its missile arsenal and the launchers needed to fire them.

Tensions in the Middle East have intensified further as Iraq has accused Israel of violating its sovereignty by using Iraqi airspace to conduct airstrikes on Iran. The allegation comes amid ongoing military conflict between Israel and Iran,