Russia said the use of a tactical nuclear weapon by the U.S. in Iran would be "catastrophic" after a report that it had not been ruled out as an option for President Donald Trump, who is considering joining Israel's strikes.

However, the British newspaper said President Donald Trump was not considering using a tactical nuclear weapon on Fordow and the possibility was not presented by Defense Secretary Pete Hegseth and the chairman of the Joint Chiefs of Staff, General Dan Caine, in meetings in the White House Situation Room.

As Trump considers joining the war in the Middle East, Iran’s ally says there could be potentially perilous consequences for the world.