Iranian Foreign Minister Abbas Araghchi said in a message on X that the attack targeted “solely military and security sites” involved in what he said was the Israeli “genocide in Gaza and Lebanon” and was conducted by Iran in “self-defense under Article 51 of the UN Charter.”

“Our action is concluded unless the Israeli regime decides to invite further retaliation. In that scenario, our response will be stronger and more powerful,” Araghchi said.

Hezbollah is both an armed group and political party that controls much of southern Lebanon. It is considered a terrorist organization by the United States, although the European Union has only blacklisted its armed wing.

As the UN Security Council scheduled an emergency meeting on the Middle East for October 2, Prime Minister Benjamin Netanyahu called the attack “a big mistake” and said Tehran “will pay for it.” He added: “Whoever attacks us, we attack them.”

U.S. President Joe Biden said he would discuss a response with Netanyahu. Asked what the response would be, Biden replied: “That’s in active discussion right now. That remains to be seen.”

The number of ballistic missiles fired was about twice as many as were launched in an attack on Israel earlier this year, Ryder added in a briefing with journalists. The attack in April was in retaliation for a deadly Israeli air strike on the Iranian consulate in Damascus.

World leaders urged Iran and Israel to step back from the brink and negotiate a cease-fire.

EU foreign policy chief Josep Borrell also called for an immediate cease-fire and condemned Iran’s attack “in the strongest terms,” while U.S. Secretary of State Antony Blinken said the attack was “totally unacceptable” and should be condemned by the entire world."