Top U.S. and Israeli officials have met in recent weeks as the Obama administration continues to reassure Israel about its efforts to stop Iran from acquiring a nuclear bomb.
The U.N. nuclear watchdog chief said it was his duty to warn the world about suspected Iranian activities that point to plans to develop atomic bombs, maintaining pressure on Tehran ahead of rare talks between Iran and his agency expected this month.
The United States relayed a message to Iran that blocking the Strait of Hormuz would be a "red line," the New York Times reported.
Iran will fire long-range missiles during a naval drill in the Gulf on Saturday, a semi-official news agency reported, a show of force at a time when Iran has threatened to close shipping lanes if the West imposes sanctions on its oil exports.
Iran will close the Strait of Hormuz if its oil exports are subjected to foreign sanctions, the Islamic Republic's official news agency reported.