The U.S. military launched airstrikes and Iran retaliated Wednesday following the crash of an Army helicopter near the Strait of Hormuz that U.S. President Donald Trump blamed on the Islamic Republic, The Associated Press reported.

Iran launched attacks in Bahrain and Kuwait, which both sounded alerts and fired air defenses in response. Iran also said it targeted an air base in Jordan hosting U.S. forces, which was not immediately acknowledged either by American or Jordanian officials.

Fighter jets from the U.S. Air Force and Navy conducted the strikes in Iran, the U.S. military’s Central Command said, targeting “air defense, ground control stations, and surveillance radar sites.” Iran acknowledged strikes around Bandar Abbas and Qeshm Island, but gave no details on the damage.

“The operation was a proportional response to recent attacks on U.S. forces and international commercial ships transiting regional waters,” Central Command said.

Trump said earlier in a social media post that Iran had shot down the aircraft while it was on patrol over the strait and declared that the U.S. “must, of necessity, respond to this attack.” Iran’s top diplomat said foreign military forces near its territory “are at constant risk” and later vowed that there would be a response to the new U.S. strikes.

Iranian forces “will leave no attack or threat unanswered,” Iranian Foreign Minister Abbas Araghchi said on X. “Leave our region if you want to be safe.”

The downing of the Apache attack helicopter and the strikes by the U.S. military further strained a two-month ceasefire a day after Iran and Israel exchanged fire for the first time since the fragile truce took effect. Iranian state television said Tuesday that the Israeli attacks killed at least two members of the country’s air-defense units.

The Army AH-64 Apache attack helicopter went down after colliding with an Iranian drone, according to a U.S. official, who spoke to AP on condition of anonymity to discuss an ongoing investigation.

It wasn’t clear whether the collision was intentional, and official statements only said the crash is under investigation. CNN, CBS News and other outlets earlier reported the collision.

In the first known operation of its kind by the American military, a drone boat rescued two aviators at 3:30 a.m. local time Tuesday, about two hours after their aircraft went down during a patrol off the coast of Oman, U.S. Central Command said.

Trump said both service members were “safe and uninjured.”