Mojtaba Khamenei chosen as Iran's next supreme leader, Iranian state media reports

Iranian missile attacks have decreased 90% since the first day of the war, according to CENTCOM Commander Adm. Brad Cooper.

Iranian drone attacks have also fallen 83%, he said. A drone attack is what killed six American troops in Kuwait over the weekend.

"In just the last hour, U.S. B2 bombers dropped dozens of 2000-pound penetrator bombs targeting deeply buried ballistic missile launchers," Cooper said. "Notably, we've also struck Iran's equivalent of Space Command, which degrades their ability to threaten Americans."

-ABC News' Steve Banyon

CENTCOM commander Adm. Brad Cooper said over 30 Iranian ships have been destroyed since the U.S. began its strikes.

"You may have heard the president say just a little while ago that we have sunk or destroyed 24 ships. That was true at the moment. We're now up over 30 ships," Cooper said during a briefing Thursday.

He also said the U.S. hit an Iranian drone carrier a few hours ago.

"As we speak, it's on fire," he said.

Defense Secretary Pete Hegseth said the U.S. has enough munitions to sustain its campaign against Iran "as long as we need to," while giving an update at U.S. Central Command in Tampa, Florida, on Thursday.

"We've got no shortage of munitions," he said. "Our stockpiles of defensive and offensive weapons allow us to sustain this campaign as long as we need to."

The House failed to adopt a war powers resolution that attempted to curtail President Donald Trump's military actions in Iran, by a vote of 212-219.

Reps. Thomas Massie and Warren Davidson bucked GOP leaders and voted in favor, while four Democrats voted against the resolution -- Reps. Greg Landsman, Henry Cuellar, Jared Golden and Juan Vargas.

-ABC News' Lauren Peller