Trump accuses Iran of violating ceasefire 'numerous times'

US President Donald Trump on Tuesday accused Iran of repeatedly breaching a fragile ceasefire with Washington, injecting fresh uncertainty into already fragile diplomatic efforts as both sides prepare for high-stakes talks in Islamabad.

“Iran has Violated the Cease Fire numerous times!” Trump said in a post on Truth Social.

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The accusation came as Pakistan pressed ahead with preparations for a second round of US-Iran talks in Islamabad, even as doubts persisted over whether Tehran would send a delegation. The two sides remain entrenched in sharp rhetoric, with Trump warning that “lots of bombs” would “start going off” if no agreement is reached before the ceasefire deadline he has set for Wednesday.

The two-week ceasefire, which began on April 8, is seen as likely to be extended if negotiations resume, though uncertainty continues to cloud the diplomatic track. While the White House has indicated that Vice President JD Vance will lead the American delegation, Iranian state television on Tuesday signalled hesitation, stating that “no delegation from Iran has visited Islamabad… so far,” reflecting internal divisions within Tehran’s leadership.

Tensions have further escalated following the US Navy’s seizure of an Iranian container ship over the weekend, adding strain to already fraught negotiations. At the heart of the dispute lies control over the Strait of Hormuz, a critical global energy corridor through which roughly a fifth of the world’s oil and gas supplies pass.

Washington’s blockade of Iranian ports, aimed at forcing Tehran to relinquish control over the strait, has driven up global energy prices, with Brent crude nearing $95 per barrel—up sharply since the conflict began. Trump has insisted that international shipping must be allowed to pass through the waterway without restrictions.

Also read: Trump claims US 'winning' against Iran ahead of crucial talks in Islamabad

Despite reports that Iran has received fresh proposals from Washington, significant gaps remain on key issues, including Tehran’s nuclear programme, its regional proxy networks, and maritime control in the Gulf.

Iranian Parliament Speaker Mohammad Bagher Qalibaf struck a defiant tone, accusing the US of attempting to force a surrender. “We do not accept negotiations under the shadow of threats,” he said, adding that Iran was prepared to “reveal new cards on the battlefield.”

Even so, Pakistani officials have expressed cautious optimism that talks will proceed, with heavy security deployments across Islamabad and preparations suggesting the possibility of high-level participation if negotiations gain traction.

The diplomatic push comes amid wider regional flux, including parallel efforts to revive talks involving Israel and Lebanon, underscoring the high stakes surrounding the ceasefire deadline and the risk of a broader escalation if negotiations falter.