Iranian Ambassador to the United Nations Amir-Saeid Iravani condemned U.S. strikes against Iran that targeted the country’s military leadership and killed Supreme Leader Ali Khamenei, calling the attack a double standard and promising the country would defend itself at a U.N. Security Council meeting Saturday.

Iravani accused the U.S. of undermining its claims of pursuing international stability while attacking a sovereign country for its “domestic” activities.

“Neither the charter nor international law recognize internal matters of a state as justification for the use of force by other states. The rule of law would be replaced by the rule of force,” Iravani said.

“Iran will continue to exercise its right of self-defense decisively and without hesitation until the aggression ceases in full and unequivocal terms.”

On Saturday morning, President Donald Trump ordered the execution of Operation Epic Fury, citing Tehran’s continued efforts to develop a nuclear weapon.