Iraq's prime minister has said the US killing of Iranian Quds Force commander Qasem Soleimani will "light the fuse" of war.
His comments came as Foreign Secretary Dominic Raab urged "all sides to de-escalate", saying that "conflict" is in "none of our interests".
Iranian leaders have vowed “harsh revenge" against America after Donald Trump ordered the attack on Tehran's top military commander in Baghdad this morning.
President Hassan Rouhani has called the assassination a "heinous crime" and pledged to ramp up military efforts against its perpetrators.
Follow our live updates here...