Badly trained Polish pilots, bad weather, and faulty instructions from Russian air traffic control were to blame for the 2010 plane crash that killed Poland's president and 94 others, according to a report released in Warsaw on Friday, dpa reported.
Lech Kaczynski, his wife and numerous officials from the government and military were en route to Russia when their plane crashed in Smolensk on April 10 last year.
The report was compiled by 34 experts who took 14 months to study details of the crash.
Warsaw rejected a report released by Russia in January, saying it was biased because it cleared Russian air traffic controllers of any wrongdoing and blamed Poland's air force chief for pressuring the crew to land despite bad weather.