The United States carried out new airstrikes on a military site in southern Iran on Wednesday. A US official said the target posed a threat to American forces and commercial maritime traffic in the Strait of Hormuz.
The US military confirmed the strikes hit a site near the Strait of Hormuz. The official did not publicly identify the facility or release a damage assessment.
The strikes came as President Donald Trump publicly rejected the central terms of a draft peace proposal that Iranian media said was close to a deal.
Trump said the Strait of Hormuz will remain open to all and will not be controlled by any country under any deal reached with Iran. He said there were no discussions about easing sanctions on Tehran.
The White House called the draft peace proposal a "total fabrication." Iranian media had reported the plan would see Iran fully restore commercial shipping through Hormuz while the US would withdraw military forces from Iran's vicinity.
Iran's Revolutionary Guard said "enemy weakness" makes new fighting unlikely, but the force is ready to repel any attacks.
Speaking at a Cabinet meeting alongside Secretary of State Marco Rubio, Trump said Iran cannot have a nuclear weapon. The White House said negotiations are "proceeding nicely" and that the president would only make a deal that ensures Iran can never obtain a nuclear weapon.
The Strait of Hormuz handles roughly a fifth of global oil shipments. The waterway has been a central point of contention between Washington and Tehran since the start of the war.