Thirteen top Polish officers were fired yesterday in the fallout from last year’s plane crash that killed President Lech Kaczynski, a disaster seen as a key issue in October’s general election.

Centre-right Prime Minister Donald Tusk - under fire for his handling of the crash from Mr Kaczynski’s identical twin, conservative opposition leader Jaroslaw Kaczynski - announced that three air force generals and 10 other top officers had been sacked.

They were axed by new Defence Minister Tomasz Siemoniak, whose predecessor Bogdan Klich quit last Friday after a government commission of inquiry found that the military crew of the Presidential jet were ill-trained and ill-prepared.

Mr Tusk said that Czeslaw Piatas, a deputy Defence Minister, was also leaving his job, and that the air force unit responsible for transporting top officials would be disbanded.

The news that heads had rolled came hours after President Bronislaw Komorowski, a key Tusk ally, announced that Poland’s general election would take place on October 9.

Mr Kaczynski, his wife and all 94 other Poles including most of the country’s military top brass died on April 10, 2010 when Warsaw’s Presidential jet crashed in Smolensk, western Russia.

Last Friday’s long-awaited report from a Polish government commission said the pilots of the Russian-made Tupolev-154 made a series of errors and blamed hasty, haphazard training that violated regulations.

The navigator’s Russian was weak, and the meteorological information was incomplete, the inquiry commission said, while also pointing to shortcomings at Smolensk airport.

It ruled out sabotage and pressure from third parties on the crew to land for a high-profile World War II anniversary despite the weather.