Iran lashed out at the US for crossing “a very big red line” with its risky decision to launch strikes on three Iranian nuclear sites.

The United States attacked three sites in Iran early Sunday, inserting itself into Israel’s war aimed at destroying the Iranian nuclear program in a risky gambit to weaken a longtime foe that prompted fears of a wider regional conflict as Tehran accused Washington of launching "a dangerous war.

Iran's military launched dozens of missiles into Israel on Saturday night after President Donald Trump ordered U.S. airstrikes against three Iranian nuclear sites at Fordow, Natanz and Isfahan. Trump and other world leaders have called on Iran to come to the negotiating table.