President Donald Trump declared Thursday that the ceasefire between the United States and Iran is over, even as he left the door open for continued diplomatic talks between the two countries.

Trump's remarks, reported by Political Wire, drew an immediate response from Tehran, which has asked Washington to keep negotiations alive despite the president's declaration.

The president did not specify what conditions, if any, would be required for the ceasefire to be reinstated. He confirmed the U.S. intends to pursue further talks with Iran but framed the ceasefire itself as finished.

Iran's request to continue dialogue signals Tehran is not ready to walk away from the table, even as the security framework that had governed the two sides' posture appears to have collapsed in the president's telling.

No timeline, location, or format for prospective talks has been announced by either government. The State Department had not issued a formal statement as of Thursday afternoon.

Further details are expected when senior administration officials brief reporters later this week.