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.

Iranian Foreign Minister Abbas Araghchi warned that any military action by the U.S. in the escalating war with Israel would be "very, very dangerous for everybody."

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.