From open sources

On the evening of 11 January, the President of Ukraine Volodymyr Zelensky addressed the nation. The appeal was written after a telephone conversation with Iranian President Hassan Rouhani, in which the latter pleaded guilty for his country Ukrainian downed Boeing 737 and apologized.

Prior to this, Iran has already said that the plane was mistakenly shot down by a missile of the “Islamic revolutionary guard Corps” (IRGC).

And the President Rouhani said that the perpetrators of the incident will be punished.

And that’s what Iran’s actions followed.

What has made Iran

The crash of the Boeing 737, 8 Jan 2020
Photo from open sources

Arrested was involved. Although details about the arrest and about those who were detained, not yet.