Israeli-Iranian enmity stretches back decades through a history of clandestine wars and attacks by land, sea, air and cyberspace.

Iranian President Masoud Pezeshkian blamed Hassan's killing partly on the United States which has long supplied Israel with advanced weapons.

His comments came a day after an Israeli airstrike on the Lebanese capital, Beirut, killed at least 31 people

A preliminary report by Iran's military said in May that no evidence of foul play or an attack had been found during the investigation.

A triumph by Masoud might promote a pragmatic foreign policy, ease tensions over now-stalled negotiations with major powers to revive a 2015 nuclear d...

The Council disqualified hardline former President Mahmoud Ahmadinejad and former parliamentary speaker Ali Larijani, a prominent conservative.

Iranian State TV quoted an official as saying that at least one passenger and one crew member had been in contact with rescuers.

The official said the lives of Raisi and Foreign Minister Hossein Amirabdollahian were "at risk following the helicopter crash".

Khamenei said Israel has suffered an "irreparable failure" on both "military and intelligence" fronts.