Unidentified flying object filmed by pilots during flight

Unidentified flying object was filmed on a cell phone camera by helicopter pilots.
Video was filmed by the pilots over the territory of Kazakhstan in the East Kazakhstan region. The helicopter was heading towards Zaisan.
For ethical reasons, publication of the audio file is not possible, as the message consists almost entirely of foul language. One thing is clear, the object has circled the helicopter and disappeared at high speed into the sky.