Herzi Halevi, head of the Israeli army, did not give details of the magnitude of the response. The escalation of tensions in the Middle East has reached a new peak with Iran's retaliation against Israel last Sunday after they attacked the Iranian embassy in Syria.

A war long fought through proxies, assassinations and strikes outside Israel has spilled into the open

"The rumor in Tehran is that the Golan Heights are a potential target," analyst Mohammad Ali Shabani told Newsweek.

The Israeli war cabinet met again on Monday to discuss the strike, with some hawkish members of the prime minister’s government calling for a swift and forceful retaliation.

Iran launched the attack in response to a strike widely blamed on Israel that hit an Iranian consular building in Syria earlier this month.

Focus has turned to preventing escalation after a wave of more than 300 missiles and drones was largely intercepted with little damage.

Sen. John Fetterman said he didn't agree with President Biden's decision to stay out of an offensive attack against Iran on Sunday during an interview with CNN.

President Biden told Israeli prime minister Benjamin Netanyahu during a call on Saturday that the U.S. won't support any Israeli counterattack against Iran, a senior White House official told Axios. Why it matters: Biden and his senior advisers are highly concerned an Israeli response to Iran's attack on Israel would lead to a regional war with catastrophic consequences,