Friday’s talks between European ministers and Iran’s top diplomat, which aimed at de-escalating the fighting between the two adversaries, failed to produce a breakthrough.

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."

Arab Gulf states are lobbying the U.S. to rein in the fighting. Their concerns have grown in recent days with the possibility that the U.S. could join the Israeli attacks and persistent talk of regime change,