Iran has several other sites in its nuclear program that were not announced as targets in the U.S. strikes. Iran's only commercial nuclear power plant is in Bushehr on the Persian Gulf, some 750 kilometers (465 miles) south of Tehran.

Iran has more than thirty nuclear facilities spread out across the country, with several built deep underground. Here's a look at those that have been or could be targeted in the U.S. and Israeli operations, the damage some have sustained so far, and the possible consequences of striking nuclear facilities.

We devastated the Iranian nuclear program," Hegseth said at the outset of his remarks, also noting that the operation did not target Iranian troops or citizens. "Initial battle damage assessments indicate that all three sites sustained extremely severe damage and destruction," Caine told the media.