"As for the voice recorder, it was seriously damaged, its cable was destroyed, so we are working to restore it. We will continue in the morning," MAK’s Sergei Zaiko told Russian newspaper Kommersant.
Investigators earlier found the crashed plane`s first and second flight data recorders, and its first voice recorder.
The Investigative Committee presented three versions of the cause of the tragedy: a technical fault, severe weather conditions and human error.
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