U.S. officials have been told Israel is fully ready to launch an operation into Iran, multiple sources told CBS News.

Iran launched missiles and drones at Israel in separate barrages overnight Friday in response to airstrikes less than a day earlier that targeted nuclear sites and top commanders in the Islamic nation.

Israel struck at the heart of Iran’s nuclear, missile and military complex early Friday, in an unprecedented attack that reportedly killed three of Iran’s most powerful figures and plunges the wider Middle East into dangerous new territory.