US Secretary of State Mike Pompeo said Sunday he was “outraged” by another missile attack on an Iraqi airbase where US forces have been stationed, as neighbouring Iran signalled a wish to de-escalate tensions. “Outraged by reports of another rocket attack on an Iraqi airbase,” Pompeo tweeted. “These continued violations of Iraq’s sovereignty by groups not loyal to the Iraqi government must end.” There was no immediate claim of responsibility for Sunday’s rocket attacks, in which the Iraqi military said eight missiles wounded two Iraqi officers and two airmen. The US has previously blamed such attacks on Iran-backed groups in Iraq. Al-Balad is the main airbase for Iraq’s F-16s, which it bought from the US to upgrade its air capacities. The base had held a small US Air Force contingent as well as American contractors, but a majority had been evacuated following tensions between the US and Iran over the past two weeks, military sources told AFP. Outraged by reports of another rocket attack on an Iraqi airbase. I pray for speedy recovery of the injured and call on the Government of #Iraq to hold those responsible for this attack on the Iraqi people accountable. — Secretary Pompeo (@SecPompeo) January 12, 2020 “About 90 per cent of the US advisers, and employees of Sallyport and Lockheed Martin who are specialised in aircraft maintenance, have withdrawn to Taji and Arbil after threats,” one of the sources said. “There are no more than 15 US soldiers and a single plane at al-Balad,” the source added. Military bases hosting US troops have been subject to volleys of rocket and mortar attacks in recent months that have mostly wounded Iraqi forces, but also killed one American contractor last month. Trump warns Iran against ‘massacre’ as UK ambassador detained at protest That death set off a series of dramatic developments, with the US carrying out strikes against a pro-Iran paramilitary group in Iraq as well as a convoy carrying top Iranian and Iraqi commanders outside Baghdad airport. Pro-Iran factions in Iraq have vowed revenge for those raids, even as Iran said it had already responded in “proportion” by striking another western airbase where US soldiers are located. Rocket attacks against Baghdad’s high-security Green Zone, where the US and other embassies are based alongside international troops, are still taking place.