US President Donald Trump said Tehran has “no plan” to execute protesters, citing information from unnamed sources.
Trump said he had been told “on good authority” that killings were stopping, but he did not rule out possible US military action.
The comments came as protests that began over Iran’s collapsing currency widened into a broader challenge to the country’s leadership.
The US and UK have reduced personnel at the Al-Udeid air base in Qatar, describing the move as a precautionary measure.
Iran briefly closed its airspace overnight, prompting airlines to reroute flights amid rising security concerns.
The UK Foreign Office temporarily closed its embassy in Tehran, shifting operations to a remote basis.
Trump earlier warned of “very strong action” if Iran carried out executions of detained protesters.
Iran’s Foreign Minister Abbas Araghchi said executions were not planned, adding:
Hanging is out of the question.
Iranian authorities postponed the execution of Erfan Soltani, a protester sentenced to death, according to his family and rights groups.
Several European countries, including Italy and Poland, urged their citizens to leave Iran, while Germany advised airlines to avoid Iranian airspace.
Lufthansa confirmed it would avoid Iranian and Iraqi airspace until further notice.
Trump said Iran’s government could fall amid the unrest, adding:
Any regime can fail.
Human rights group HRANA said it had confirmed more than 2,400 protester deaths, with hundreds more under investigation.