An Israeli official informed AFP on Saturday that the military is 'preparing a response' to the Iranian missile barrage that targeted Israel earlier this week.

'The IDF (Israeli military) is preparing a response to the unprecedented and unlawful Iranian attack on Israeli civilians and Israel,' the official stated on condition of anonymity as he was not authorized to speak publicly on the issue. He did not provide details on the nature or timing of the response.

Earlier, Israeli Prime Minister Benjamin Netanyahu vowed that Iran, Israel's arch-foe, would pay for its missile attack on Tuesday, while Tehran warned that any retaliation would result in 'vast destruction', escalating concerns of a broader conflict.

Iran launched a barrage of missiles at Israel on Tuesday, causing Israelis to seek shelter and sparking alarm throughout the region. The Iranian Revolutionary Guards Corps claimed the attack was in response to Israel's killing of Hezbollah leader Hassan Nasrallah last week and the death of Hamas leader Ismail Haniyeh in a Tehran bombing widely attributed to Israel.

Reports indicated that between 150 and 200 missiles were fired in the attack. This marks Iran's second assault on Israel, following a missile and drone attack in April in retaliation for a deadly Israeli air strike on the Iranian consulate in Damascus.