A helicopter carrying Iran's President Ebrahim Raisi and Iranian Foreign Minister Hossein Amirabdollahian has been involved in an accident, state media has reported. Photo: EPA-EFE/REX/Shutterstock

Reports say the helicopter - one of three travelling in a convoy - made a "hard landing" after it got into difficulties in heavy fog in the north of the country.

Interior Minister Ahmad Vahidi said rescuers were still trying to reach the site due to the difficult weather conditions.

Raisi was heading to the city of Tabriz, in the north west of Iran, after returning from an Iran-Azerbaijan border area, according to local media.

Who is Ebrahim Raisi?

Raisi, 63, was elected president on his second attempt in 2021. He is seen as a hardline cleric and regarded as a potential successor one day to Ayatollah Khamenei, the country's supreme leader since 1989.

In 2019, the Supreme Leader named him to the powerful position of head of the judiciary.

Raisi was also elected as deputy chairman of the Assembly of Experts, the 88-member clerical body responsible for electing the next Supreme Leader.