The Israeli attacks followed Iran’s ballistic missile barrage against Israel earlier this month, adding to the cycle of tit-for-tat strikes between the two countries.

Israel said on Saturday it had struck military targets inside Iran in response to earlier Iranian attacks, again raising fears that the long-running confrontation between the two powerful militaries could escalate into an all-out regional war that draws in the United States.

In assaults against the Houthis in Yemen at the end of September, Israeli forces flew more than a thousand miles to attack power plants and shipping infrastructure, using reconnaissance aircraft and dozens of fighter jets that had to be refueled in midflight. Tehran, about 1,000 miles from Israel, is in a similar range.