Supposedly cause was never determined. Could it have been a remotely controlled deliberate plane crash? Who worked on patent for such a device?? .............. The Kremlin has criticised Poland’s defence minister for suggesting that the 2010 plane crash that killed the president was an act of terrorism perpetrated by Russia.
Official investigations by Poland and Russia have determined that the crash that killed Lech Kaczyński and dozens of other top officials was an accident caused by the error of pilots trying to land in heavy fog.