Dubai: The United States launched another round of military strikes on Iran on Wednesday, targeting sites linked to Tehran's military capabilities just hours after President Donald Trump declared that recent Iranian attacks on commercial shipping had effectively ended the ceasefire.

The latest strikes came a day after the US targeted Iranian military installations and port facilities in retaliation for attacks on merchant vessels in the Strait of Hormuz, a key global shipping route.

In a statement posted on social media, the US military said the latest operation was aimed at "further degrade" Iran's ability "to threaten freedom of navigation" through the strategic waterway.

The military added that the United States "is holding Iran accountable for recent unjustified aggression against commercial shipping and civilian crews freely navigating a vital international waterway."

Iranian state media reported explosions in the southern port city of Bandar Abbas, which overlooks the Strait of Hormuz, as well as in the coastal city of Sirik.

Earlier in the day, Trump warned that Washington was prepared to intensify military action against Tehran following Iranian attacks on commercial vessels, though he later sought to play down fears of a prolonged conflict.

"Anything that happens is going to happen very fast," Trump said, while also suggesting the US military might "just finish the job."

Speaking on the sidelines of the NATO summit in Ankara, Trump said the strikes were a response to Iran's attacks on shipping in the Strait of Hormuz. He also declared that, from his perspective, the ceasefire was over.

"For me, I think it's over," Trump said when asked about the status of the truce, adding that US negotiators could continue talks with Tehran but expressing little optimism.

"They can talk, but I think they're wasting their time," he said.

Iran pushed back against Trump's remarks, with Deputy Foreign Minister Kazem Gharibabadi writing on X that the US president's comments "are not a sign of power but an admission of the failure" of Washington's policy toward Tehran.

The latest escalation has heightened fears of a broader regional conflict, with renewed attacks threatening the fragile ceasefire and raising concerns over global energy supplies, as the Strait of Hormuz handles a significant share of the world's oil and natural gas exports.