Iran signaled Wednesday that it remains prepared to answer any future attacks with military force, as officials adopted a defiant tone following reported retaliatory operations linked to recent U.S. strikes in the region.

"Today, the Iranian nation, in its battle with America and the Zionist regime, showed that the era of free-of-charge Iran threats is over and that any aggression will be met with a decisive, regrettable, and proportionate response," Iran's chief negotiator Mohammad Bagher Ghalibaf said, according to local news agency ISNA.

Meanwhile, Iranian Foreign Minister Abbas Araghchi said that Tehran would continue military strikes against sites allegedly used in attacks on Iran, after the Islamic Revolutionary Guards (IRGC) fired missiles on Kuwait and Bahrain.

"Our Armed Forces are conducting self-defense strikes on sites the US is permitted to use to attack civilian shipping and violate the ceasefire," Araghchi said in a post on X.

"Any hostile act will be met with an immediate, decisive response. What sanctions and war failed to achieve won't be won with more war," he added.