The United States, a permanent member of the United Nations Security Council, has committed a grave violation of the U.N. Charter, international law and the Non-Proliferation Treaty (N.P.T.) by attacking Iran’s peaceful nuclear installations, Araqchi wrote on his X account early on Sunday.

“The events this morning are outrageous and will have everlasting consequences,” he said.

The top diplomat noted, “Each and every member of the U.N. must be alarmed over this extremely dangerous, lawless and criminal behavior.”

In accordance with the U.N. Charter and its provisions allowing a legitimate response in self-defense, he said, Iran reserves all options to defend its sovereignty, interest, and people.

The Atomic Energy Organization of Iran said in a statement early on Sunday that the United States has claimed responsibility for the strikes on nuclear facilities in Fordow, Natanz, and Esfahan.

This is while the U.S. has been trying to hide its role in the Israeli attacks on Iran for nine days. 

The Israeli regime attacked Iran, including residential buildings in Tehran, in an unprovoked act of aggression overnight on June 13. Top Iranian military officials were assassinated in targeted strikes. Civilians died when houses were directly struck. Entire population centers were affected.