President Lech Kaczynsk and many Polish political figures died Saturday in a plane crash in Russia.
Officials in Poland and Russia say there are no survivors from the plane wreck that killed Poland's president, army chief, members of parliament and other government officials and historians, according to a BBC article.
The plane and over 80 passengers were headed to Warsaw for an event marking the 70th anniversary of a WWII massacre of thousands of Poles in Katyn Woods, reported the BBC.
The crash was caused when the plane missed the runway though thick fog, and instead snagged treetops and tore apart, the New York Times reported.
The New York Times quotes former President Lech Walesa as calling the crash the biggest disaster since Katyn.