MOSCOW, April 10. /TASS/. Findings made by experts from Russia and Poland, who were investigating the 2010 Polish presidential plane crash near Russia’s Smolensk, totally refute the recent claims that traces of explosives were found on fragments of the ill-fated aircraft, the Russian Investigative Committee said on Wednesday.

"The findings, made by experts who carried out numerous forensic tests both in Russia and in the Republic of Poland, totally refute the claims made by British scientists," Committee spokesperson Svetlana Petrenko said. "The experts came to a conclusion that no explosive substances or substances that could be uncommon for the plane’ structural elements or its use, were found on Poland’s Tu-154M plane wreckage and also on body fragments of the victims."

According to the official, Russian investigators have no doubts about causes of the crash.

Poland’s Air Force One, a Tu-154 plane, crashed on April 10, 2010. The pilots decided to land despite thick fog blanketing the area. The Tu-154 didn’t make it to the landing strip by a few meters and first struck trees before crashing into the ground killing all 96 people on board.

The Interstate Aviation Committee (IAC) experts concluded that the crash happened as a result of the actions of crew, who had made the wrong decision to land under difficult weather conditions and under psychological pressure. The Polish governmental commission also named the crew’s mistakes among the causes of the crash, as well as the fact that the pilot ignored the TAWS (Terrain awareness and warning system) signals to prevent unintentional impact with the ground.

Former Polish defense minister, Antoni Macierewicz, earlier announced that a UK-based laboratory, close to the UK Ministry of Defense, has allegedly found traces of an explosive substance on fragments of the ill-fated plane.