BREAKING: Trump Declares U.S.-Iran Ceasefire ‘Over’ as Fresh Strikes Raise Fears of Wider Conflict

U.S. President Donald Trump has declared the ceasefire framework between Washington and Tehran effectively collapsed, describing further diplomatic engagement with Iran as "a waste of time" following renewed military exchanges between the two countries.

Speaking on the sidelines of the NATO summit in Ankara, Turkey, Trump said he no longer believed the memorandum of understanding designed to halt hostilities remained viable, although he said U.S. negotiators could continue discussions if they wished.

"To me, I think it's over," Trump told reporters. "I'll let our negotiators keep talking if they want, but it's a waste of time.

His comments came after the United States launched a fresh wave of strikes against Iranian military assets in response to attacks on commercial vessels in the Strait of Hormuz, while simultaneously revoking a Treasury licence that had temporarily allowed Iranian crude oil and petrochemical exports under the ceasefire arrangement.

The temporary agreement, brokered through Pakistani mediation, had created a 60day window for indirect negotiations aimed at reaching a broader peace accord. However, talks held in Qatar last week ended without significant progress, leaving the fragile diplomatic process on the brink before the latest escalation.

According to U.S. Central Command, American forces targeted vessels belonging to Iran's Revolutionary Guard and other military infrastructure following attacks on commercial shipping in the Strait of Hormuz.

Iran responded by launching missiles and drones at U.S. military installations in Bahrain and Kuwait. The Islamic Revolutionary Guard Corps said the attacks were retaliation for the latest U.S. strikes and Washington's decision to reinstate restrictions on Iranian oil exports.

The renewed confrontation unsettled global energy markets, sending oil prices higher amid growing concerns over the security of the Strait of Hormuz, a critical route for global oil exports.

The crisis also overshadowed the NATO summit, where alliance leaders were meeting to discuss defence spending and broader transatlantic security issues. 

NATO Secretary General Mark Rutte welcomed increased defence commitments from European and Canadian allies, while Trump renewed his call for Greenland to come under U.S. control.

The proposal was swiftly rejected by Danish Prime Minister Mette Frederiksen, who reiterated that Greenland was "not for sale.

The latest developments have cast fresh doubt over the future of U.S.-Iran diplomacy, with the collapse of the temporary ceasefire raising fears that both sides are moving further away from negotiations and closer to a broader regional conflict.