Air raid sirens have sounded in Jerusalem as a series of explosions were heard in the skies.

       At least booms sounded as Iranian drones arrived.

       There is no immediate word from authorities on whether the explosions are an incoming attack or the sound of interceptions.

       Iran launched dozens of drones and ballistic missiles toward Israel late Saturday in an unprecedented revenge mission that pushed the Middle East ever closer to a regionwide war.

       The attack marked the first time Iran had ever 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.”

       READ MORE: Five places Iran could target as it carries out major attack on Israel