Tehran/Tel Aviv, June 13 (Reporter) Iran's Supreme Leader Ali Khamenei said on Friday that Israel will receive harsh punishment following Israeli airstrikes on Iranian targets earlier in the day. Israel "has prepared a bitter fate for itself, which it will definitely receive," he said in a statement. Spokesman for the Iranian Armed Forces Abolfazl Shekarchi said in an interview with state-run IRIB TV that Israel would pay a heavy price for its action, stressing that the Iranian armed forces were well-prepared and would give a harsh response. Multiple senior military commanders, including Chief Commander of Iran's Islamic Revolution Guards Corps Hossein Salami, Chief of Staff of the Iranian Armed Forces Mohammad Bagheri and Commander of Iran's Khatam al-Anbiya Central Headquarters Gholam Ali Rashid, were assassinated as a result of the airstrikes, state media reported. The Israeli airstrikes also killed at least two Iranian nuclear scientists, identified as Mohammad Mehdi Tehranchi and Fereydoun Abbasi, reports said. Explosions were reported in Tehran and the counties of Natanz, Khondab and Khorramabad, the Iranian state TV reported, adding that multiple casualties, including women and children, were reported in a residential building in Tehran. Over 100 drones have been launched by Iran at Israel, said Israel Defence Forces (IDF) Spokesman Effie Defrin, adding that the army is working to shoot them down. The IDF confirmed early Friday in a statement that it had launched a "pre-emptive, precise, combined" attack on dozens of military targets, including nuclear targets in different areas of Iran, adding, "Iran is closer than ever to obtaining a nuclear weapon." Israeli Prime Minister Benjamin Netanyahu said in a video address that the goal of the operation is "to strike Iran's nuclear infrastructure, Iran's ballistic missile factories, and Iran's military capabilities," and will continue "for as many days as it takes." IDF chief Eyal Zamir said in a statement that Israel has "no other choice" and was "at the point of no return" to fight for its existence. Following the attack, the IDF's Home Front Command prohibited educational activities and gatherings in Israel, except for essential sectors. The Israeli Health Ministry also ordered all hospitals in the country to raise their alert level to the highest possible, move to protected areas and descend to protected underground complexes...////...