US issues travel warning for Israel with Iran attack believed to be imminent

US issues travel warning for Israel with Iran attack believed to be imminent

Israel is bracing for a worst-case scenario that US officials believe could materialize within just hours — the possibility of a direct attack on Israel by Iran in retaliation for a strike almost two weeks ago that killed seven Iranian military officers. Iran has vowed to take revenge for Israel killing its commanders, who were hit by an April 1 strike on the Iranian embassy in Syria's capital.

Two US officials told CBS News that a major Iranian attack against Israel was expected as soon as Friday, possibly to include more than 100 drones and dozens of missiles aimed at military targets inside the country. 

The officials said it would be challenging for the Israelis to defend against an attack of such a magnitude, and while they held out the possibility that the Iranians could opt for a smaller-scale attack to avoid a dramatic escalation, their retaliation was believed to be imminent. 

Asked Friday how imminent he believes an attack is, the US President Biden responded, "I don't want to get into secure information, but my expectation is sooner than later." The president urged Iran not to move forward, saying his message to Tehran was: "Don't."

Tehran has not indicated publicly how or when it will return fire, so it's unclear how far Iran's leaders will go. If they decide to carry out a direct attack on Israel, there's fear it could blow Israel's ongoing war against Hamas up into a much wider regional conflict.

With the Iranian retaliation expected at any time, the US State Department on Thursday warned Americans in Israel not to travel outside major cities, which are better protected from incoming rocket fire by the country's Iron Dome missile defense system. The latest guidance noted that travel by US government employees in Israel could be further restricted with little notice as things develop in the tinderbox region.-CBS News