The Pentagon is intensifying its attacks on the Iranian military as the war stretched into its ninth day.

U.S. forces on Sunday struck a broad array of military targets, said a senior U.S. military official who was not authorized to speak publicly about ongoing operations and discussed them on the condition of anonymity.

Targets for those airstrikes included sites affiliated with the Islamic Revolutionary Guards Corps, the Iranian force with pervasive economic and military clout that constitutes the spine of a militarized state, as well as missiles and their launchers, and remaining Iranian air defenses, the official said.

The Israeli military said that it had completed a wave of strikes across Tehran on Sunday, including against 50 ammunition bunkers. It said it also targeted the headquarters of the Guards’ Space Force in the Iranian capital.

Earlier on Sunday, the Israeli military said that it had struck more than 400 targets across western and central Iran “over the past day.”

The Pentagon has periodically issued high-level updates on the war in the form of statements that offer an accounting of how many airstrikes U.S. Central Command has carried out in Iran and what kinds of targets it has attacked.

On Sunday morning, U.S. Central Command issued a warning to civilians in Iran, asking them to stay indoors and away from mobile launchers for ballistic missile launchers and attack drones.

Defense Secretary Pete Hegseth offered his most recent public remarks on the war with Iran on Thursday during a news media briefing with Adm. Brad Cooper, who leads the U.S. Central Command. Mr. Hegseth said U.S. and Israeli warplanes “have relentlessly destroyed Iran’s air defenses over the past few days and they’ve continued hunting for more systems to kill.” On Friday, U.S. Central Command said that American forces had struck over 3,000 targets in the first week of the war, including damaging or destroying 43 Iranian ships.

The Pentagon has released the names of six U.S. service members who were killed by an Iranian attack drone in Kuwait on March 1. Their remains were repatriated in a ceremony at Dover Air Force Base in Delaware on Saturday.

On Sunday, the Pentagon said a seventh U.S. service member had died in the war with Iran.

Approximately a dozen more U.S. troops were wounded in the March 1 attack, though the Pentagon has not released any identifying information.

Mr. Hegseth used a briefing to reporters at the Pentagon last week to broadcast a wide-ranging threat should more Americans become casualties, saying, “If you kill Americans, if you threaten Americans anywhere on Earth, we will hunt you down without apology.”

U.S. Continues Airstrikes Against a Wide Array of Targets in Iran