Following the accident, a senior investigative committee composed of experts and technicians arrived at the scene on Monday morning, the semi-official Tasnim news agency said on Friday, citing a report from the General Staff of Iran's armed forces.

According to the report, the helicopter remained on its predetermined path throughout the journey and did not deviate from the flight path.

The report said that about one and a half minutes before the incident, the pilot of the crashed helicopter had contacted the other two helicopters of the President's convoy.

The report of Xinhua news agency quoted it as saying that no traces of bullets or any similar object were found on the debris of the crashed helicopter.

It said the helicopter caught fire after hitting the mountain.

"Due to the complexities of the area, fog and low temperatures," search and rescue operations continued into the night and then continued throughout the night, the report said, adding that "at 5 a.m. local time on Monday, with the assistance of drones, the exact location of the incident was determined." The location has been identified."

It said no suspicious issues emerged in the conversation between the watchtower and the flight crew.

It said more information would be provided after further investigation.

Raisi and his entourage were headed to East Azerbaijan province when the helicopter carrying them crashed in a mountainous area on Sunday.

Also on board the helicopter were Foreign Minister Hossein Amir-Abdollahian and Mohammad Ali Ale-Hashem, representative of Iran's supreme leader in EA Azerbaijan.

Raisi was buried on Thursday at the Holy Shrine of Imam Reza in his hometown, the northeastern city of Mashhad.