Iranian ballistic missiles hit central Israel again on Sunday night.
Aerial attacks between Israel and Iran continued overnight into Monday, marking a fourth day of strikes following Israel's Friday attack. That surprise operation hit at the heart of Iran's nuclear program, striking key facilities and killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.
The U.S. did not provide any military assistance or have any involvement in Israel's Friday strike, a U.S. official told ABC News. President Donald Trump told ABC News on Sunday, "It's possible we could get involved."
President Donald Trump has instructed his national security team to be ready in the Situation Room as he travels back to the White House on Monday evening, after cutting short his trip to the G7 summit, two sources told ABC News.
The White House said Trump was leaving the summit early citing the situation in the Middle East.
-ABC News' Katherine Faulders and Rachel Scott
Posting on his social media platform, President Donald Trump is advising citizens of Tehran, a city with a population of 9.8 million people, to "immediately evacuate."
"Iran should have signed the 'deal' I told them to sign. What a shame, and waste of human life," Trump posted.
"Simply stated, IRAN CAN NOT HAVE A NUCLEAR WEAPON," he posted. "I said it over and over again! Everyone should immediately evacuate Tehran!"
The warning comes as Iran and Israel continue to launch a new wave of missiles at each other and as Trump has publicly urged Iran to get back to the negotiation table and sign a nuclear deal.
--ABC News' Lalee Ibssa
In another security alert, the State Department said the U.S. embassy in Tel Aviv would be closed again on Tuesday.
"In compliance with Israel Home Front Command guidance, the U.S. Embassy in Jerusalem will be closed Tuesday, June 17. This includes the Consular Sections in Jerusalem and Tel Aviv," the alert reads. "The U.S. Embassy is not in a position at this time to evacuate or directly assist Americans in departing Israel."
Additionally, a U.S. official said that the State Department's task force on Middle East evacuations held a meeting Monday where potential plans to facilitate the departures of Americans from Israel were discussed at length. However, there are no indications at this point that any action is imminent.
-ABC News' Shannon Kingston
Sirens sounded in several areas across Israel a short time ago after the Israel Defense Forces said it identified another round of missiles launched by Iran.
Shortly after, the IDF gave the all clear.
