Iran 'aimed to miss' when it fired 22 missiles at US forces in Iraq on Wednesday night, officials in the Pentagon have claimed, as it emerged there were no casualties in the rocket barrage. According to Bloomberg, a US official said that no Americans were killed in the strike, leading the Pentagon to believe that the Iranian regime was "aiming to miss." However, experts said the type of missile Iran used was notoriously unreliable, and that the regime may well have missed targets by accident. It came as Boris Johnson has said he opposes any "escalation of violence" in the Middle East, as he urged Iran not to repeat its missile attacks that struck US bases in Iraq overnight and called for them to back down from conflict. The Prime Minister, who added that there appeared to be no UK casualties following the strike on Western forces, called on Iran to pursue "urgent de-escalation." As details emerged of the retaliatory strikes, where 22 missiles were fired, foreign secretary Dominic Raab said: "We urge Iran not to repeat these reckless and dangerous attacks, and instead to pursue urgent de-escalation." The rockets from Iran struck US targets last night, hitting two Iraqi airbases where American and coalition forces are based. Iran launched surface-to-surface missiles in attacks on the Ain al-Assad and Erbil bases as revenge for the killing of Gen Qassim Soleimani and Abu Mahdi al-Muhandis in Baghdad last week.