The United States and Iran have signalled they will hold a new round of ceasefire talks in Pakistan, two regional officials said Tuesday, as leaders on both sides warned they were prepared for more fighting if a fragile two-week truce expires without a deal.

The extension was announced just hours before it was set to expire. The president did not provide details on how long the new ceasefire extension will last.

President Trump extends the ceasefire with Iran at Pakistan's request, while the U.S. maintains its blockade of Iranian ports amid ongoing diplomatic tensions.

Trump's announcement appeared to be unilateral, and it was not ​immediately clear whether Iran, or Israel, would agree to extend the ceasefire.

Trump's announcement came after an expected trip by Vice President JD Vance to Pakistan for a peace talks with Iranian officials was put on hold.

President Trump said Friday that the leaders of Russia and Ukraine have agreed to his request for a three-day cease-fire and an exchange of prisoners, adding that such a halt to hostilities could be the “beginning of the end” of the long war between them.

The violence jeopardised the fragile truce between Iran and the US while the two sides considered a deal to end the fighting

DUBAI, United Arab Emirates (AP) — Iran said it was reviewing the latest American proposals on ending the war, as U.S. President Donald Trump threatened the country with a new wave of bombing unless a deal is reached that includes reopening the crucial Strait of Hormuz to international shipping.