Iran live updates: 7th killed service member is identified

The U.S. embassy in Riyadh, Saudi Arabia, has been struck by two Iranian drones, according to two U.S. officials and initial estimates from the Saudi Ministry of Defense.

The embassy was relatively empty given the overnight hours and no one is believed to have been injured -- but there is still believed to be an ongoing threat to the embassy, the U.S. officials said.

The strikes resulted in "limited fire and minor damage to the building," a spokesperson for the Saudi Ministry of Defense said.

The State Department also issued an alert advising Americans in Saudi Arabia to shelter in place immediately.

This is the second U.S. embassy to sustain damage in an Iranian drone strike, following Kuwait on Monday.

Iranian Foreign Minister Abbas Araghchi said he believes American bases are "legitimate targets" in a new interview with Iranian state TV.

"When the United States attacks us -- whether by fighter jets or the ships it deploys -- they have access to our territory to strike with all kinds of missiles and aircraft. We cannot reach their territory, but we can reach their bases. I think those bases are legitimate targets," Araghchi said.

An Islamic Revolutionary Guard Corps commander said the Strait of Hormuz is "closed."

"The strait is closed, and whoever wants to cross, our heroes in the navy of the IRGC and army will set those ships on fire," Brigadier General Ebrahim Jabari said on Iranian state TV earlier.

The Strait of Hormuz is one world's most important chokepoints for oil. Roughly 20% of the world's oil passes through the Strait, according to the U.S. Energy Information Administration.

The Israel Defense Forces said the Israeli Air Force has "struck and dismantled" the Iranian state broadcaster "a short while ago."

"The center was also recently used by the Iranian regime's forces to advance military activities under the guise of civilian activity and assets, in addition to the propaganda activities that emanate from the communications center," the IDF said in a statement.

"The IDF will continue to strike the Iranian regime's infrastructure across Tehran," the statement added.