ERBIL, Kurdistan Region of Iraq – US President Donald Trump on Wednesday warned Iran that Washington was preparing another round of strikes later that night after he declared their peace agreement to be "over," with a top Iranian advisor warning further escalation will "drive the region toward fire."

"We're gonna hit 'em hard tonight," Trump said at a NATO summit in Ankara, adding: "They violate the agreement every day."

Trump said the planned strikes were a continuation of US retaliation for Iranian attacks on commercial shipping in the Strait of Hormuz, referring to Iran's Tuesday attack on a Saudi- and Qatari-flagged oil tanker transiting the waterway.

Earlier, when asked whether the June 17 truce between himself and Iranian President Masoud Pezeshkian remained in effect despite the renewed exchanges, Trump replied, "As far as I'm concerned, it's over."

"I'll let our wonderful negotiators keep talking if they want, but I don't see it," he added.

In the early hours of Wednesday, the US and Iran exchanged strikes targeting ports in southern Iran and US military bases in Kuwait and Bahrain, with both Washington and Tehran accusing each other of violating the ceasefire agreement.

Tehran has repeatedly maintained that vessels transiting the Strait of Hormuz must use shipping lanes approved by Iranian authorities and provide prior notification before passing through the strategic waterway.

Ali Akbar Velayati, a senior adviser to Iran's supreme leader, warned in a post on X on Wednesday that US "adventures" in the region would be met with an "immediate response."

He added that "new provocations and the verbal admission of the cancellation" of the initial peace agreement "drive the region toward fire."

A round of US-Iran talks was held in Switzerland in July to discuss the implementation of the memorandum of understanding and seek a permanent resolution to the Middle East war.

Indirect negotiations between Washington and Tehran were later paused during the funeral ceremonies for Iran's late supreme leader and were expected to resume afterward.