Israel's Channel 12 has told residents "not to go to bed yet" because an unprecedented attack on Iran is coming, according to an official.

       The country's war cabinet has approved a "powerful response on Iranian soil".

       Iran launched between 150 to 200 drones and missiles in its first direct military attack against Israel on Saturday.

       The Israeli military says Iran fired more than 100 bomb-carrying drones toward Israel. Hours later, Iran announced it had also launched much more destructive ballistic missiles.

       READ MORE: Iranian drone strikes Israel in south as boy, 10, seriously injured by debris

       Iran had been threatening to attack Israel after an airstrike earlier this week widely blamed on Israel destroyed Iran’s consulate in Syria, killing 12 people, including two elite Iranian generals.

       Booms and air raid sirens sounded in Jerusalem early Sunday after Iran launched dozens of drones and ballistic missiles toward Israel in an unprecedented revenge mission that pushed the Middle East ever closer to a regionwide war.

       The attack marked the first time Iran has launched a direct military assault on Israel, despite decades of enmity dating back to the country’s 1979 Islamic Revolution. Condemnation was swift, with France saying that “Iran has crossed a new threshold with regard to its destabilizing activities and is risking a potential military escalation.” Britain called the attacks “reckless.”

       U.S. forces downed some of the Iran-launched drones flying toward Israel, according to a U.S. defense official and two U.S. officials who spoke on condition of anonymity to discuss the matter. The defense official said the effort to intercept the attack was ongoing.

       Israel's military said over 100 drones had been fired. It didn't mention ballistic missiles, which are less easily shot down, but Iran said they were part of the attack.

       “We are monitoring the threat,” the Israeli military’s spokesman, Rear Adm. Daniel Hagari, announced in a nationwide television address.

       Iran had vowed revenge since an April 1 airstrike in Syria killed two Iranian generals inside an Iranian consular building. Iran accused Israel of being behind the attack. Israel hasn’t commented on it.