Iran on Sunday denounced U.S. and British air strikes on Yemen as “fueling chaos and disorder” and risking an escalation of the war in the Middle East.

Washington and London, with support from partner nations, on Saturday launched a fresh round of air and missile strikes on Iran-backed Houthis in Yemen in retaliation for the group’s continued attacks on international shipping. A day earlier, U.S. long-range aircraft bombarded Iranian military and proxy targets in Iraq and Syria.

Iran’s foreign ministry spokesperson, Nasser Kanani, claimed that the strikes contradict U.S. and U.K. policy of wanting to avoid an escalation in the conflict.

These attacks are “in clear contradiction with the repeated claims of Washington and London that they do not want the expansion of war and conflict in the region,” Kanani said, according to AFP. He added that further attacks on Houthi rebels in Yemen would constitute a “threat to international peace and security.”