After nearly two weeks of nightly bombing, the United States and Iran entered their second day of no new attacks Sunday, U.S. defense officials said.

Iran reports no strikes overnight into Saturday, an apparent break in nearly two weeks of U.S. attacks. Tensions remain high over control of the Strait of Hormuz.

On Friday, U.S. embassies in the Middle East alerted Americans in the region that options to leave could become more limited.