British foreign minister Dominic Raab on Tuesday said attacks on US-led forces in northern Iraq were "outrageous and unacceptable".
"Last night’s attack on @coalition forces and civilians in Erbil were outrageous & unacceptable," Raab said on Twitter. "Iraqis won’t forgive militias putting Iraq’s stability at risk."
On Monday, a rocket attack on US-led forces in northern Iraq killed a civilian contractor and injured a US service member, the US coalition in Iraq said, in the deadliest such attack in almost a year.