Iran's President Ebrahim Raisi has died after the helicopter in which he was travelling crashed in a dense forest area in East Azerbaijan on Sunday, local media reports said.

On Monday morning, it was announced that all the passengers of the crashed helicopter were martyred, reported Mehr news agency.

Head of the Iranian Red Crescent Society (IRCS) Pirhossein Kolivand earlier in the day said the spot where the helicopter crash has been located.

There was no sign of surviving passengers, he told the news agency.

As many as 73 rescue teams are currently searching for the helicopter.

Earlier on Sunday, Ebrahim Raisi inaugurated the Qiz Qalasi and Khodaafarin dams with Azerbaijani President Ilham Aliyev.

In 2021, Raisi was elected as the president on the second attempt.

He is regarded as a potential successor to the country's supreme leader Ayatollah Khamenei.