There are Americans and Oklahomans in Israel. It's anticipated that Israel will attack, which could impact the U.S. "They targeted Tel Aviv. They targeted Haifa. And they targeted Jerusalem, the last being an amazing step because Jerusalem is the third holiest site for Muslims," James Regens, an intelligence and national security expert, said.

There were no immediate reports of Israeli casualties from the barrage, which targeted Tel Aviv and other central parts of Israel. A man was reported killed in Jericho, in the West Bank. Iran fired about 200 missiles, a Pentagon spokesman said.