On Saturday, the Iranian Revolutionary Guards claimed responsibility for the accident in the downing of the Ukrainian plane, which killed 176 people, at dawn on Wednesday, attributing the cause to the "tension" that prevailed.

The commander of the underground force of the Iranian Revolutionary Guard, Brigadier Amir Ali Haji Zadeh, confirmed that the soldier fired the missile that shot down the Ukrainian Boeing plane in Tehran, without obtaining confirmation of the launch order due to "interference" in the communications.

Brigadier Amir Zadeh said that the soldier believed the plane to be a "cruise missile" and had "ten seconds" to make the decision.

He added in a press conference that the guards "will accept any decision taken by officials in this regard."

In Kiev, the Ukrainian presidency announced that it is confident that Tehran will conduct an "expeditious and objective" investigation, after the latter admitted that it had mistakenly shot down the Ukrainian Boeing plane.

"Our experts in Iran were able to access all the pictures and videos and other information necessary to analyze the mechanisms going on in Tehran," the presidential statement said. Based on the information gathered ... we have enough data to understand that the investigation will be prompt and objective. ”