CHICAGO (WLS) — Some of the last flights that made it out before Israel’s attack are expected to arrive at O’Hare on Friday.

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Several international carriers have also cancelled, delayed, or redirected flights as tensions flare between Israel and Iran.

The U.S. embassy is warning all federal employees and family members in Israel, the West Bank, and Gaza to shelter in place.

Federal workers are also being asked to know the closest safe space in the event there is rocket fire.

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In recent days, the U.S began reducing diplomats and staffers not deemed essential in the Middle east due to potential unrest.

Brigadier General Effie Defrin, spokesperson for the Israel Defense Forces, stated that “Iran has sent about 100 UAVs towards Israeli land, and we are currently intercepting them.”

Israel says it is planning to use its air defenses to intercept the drones.

The emergency situation mandates that everyone must remain indoors, resulting in the closure of nearly all businesses, including schools, offices, and supermarkets, as Israeli airspace is shut down.