Emily Fang

The USS Tripoli, carrying 3,500 U.S.

Marines and sailors, has arrived in the region, though the U.S.

military will not say where and how they might be deployed.

Social media videos from across Iran showed strikes hitting all over the country, and Israel's military said it had completed what it called a wide-scale wave of strikes targeting weapons production and storage sites in Iran.

Iran claimed U.S.

and Israeli strikes hit a Tehran university.

And in a statement in Iranian media, Iran's Revolutionary Guard Corps threatened American campuses in the Middle East in retaliation.

Iran continues to fire drones and missiles at Middle Eastern countries with Kuwait, saying it was intercepting missile and drone attacks early Sunday.

Emily Fang, NPR News, Van, Turkey.

Residents managing to overcome Iran's internet blackout sent videos to Iranian diaspora websites showing strikes hitting several steel and cement factories all over Iran overnight Saturday, including in southern Iran as well as central Isfahan.

Earlier on Friday, Israel's military said it had struck a heavy water reactor in Iran, which it said was part of Iran's nuclear enrichment program.

Iran has been firing back in retaliation against Israel, hitting Tel Aviv, and against neighboring countries in the Gulf.

Bahrain and the UAE said they intercepted Iranian drones.

A worker in Oman was injured after being hit by a drone.

Emily Fang, NPR News.

Israel's military said it had struck a missile in a sea mine production facility in Yazd province in the middle of Iran.

Overnight, it also said it targeted ballistic missile and aerial defense system production sites in Tehran.

A handful of social media posts have made it out of Iran's near-total telecommunications blackout, and they show strikes on Tehran and the Iranian city of Isfahan.

Hours earlier, Iran's Revolutionary Guard said it had struck U.S.

bases in the UAE, Bahrain, and Kuwait in the Gulf using missiles and drones.