On April 10, 2010, a Tupolev carrying President Lech Kaczynski and other senior Polish officials, crashed while attempting to land in heavy fog at Smolensk, killing its 96 occupants.
A plate that contained only inclusion in Polish, recalled that the late Polish President went to Smolensk for the 70th anniversary of the massacre of Katyn, near Smolensk in 1940.22,000 Polish officers were shot there by the Soviet secret police.
But on the eve of the anniversary of the plane crash, a new plaque was placed by the Russian authorities on the memorial that do not refer to the tragedy of Katyn, causing anger among Poles.
A Polish spokesman raised the possibility that President Bronislaw Komorowski, who must travel to Smolensk Monday does not file a wreath at the new plaque.
Sunday in Warsaw, several hundred nationalists demonstrated outside the Russian embassy.
The Russian governor of Smolensk Sunday justified the absence of any reference to Katyn massacre on the new plaque at the site of the plane crash in which he had died a year ago the former Polish president and 95 other responsible.
"This is the place where we mourn the dead from the plane that crashed, not when we mourn the tragedy Polish" Katyn, told the press the governor of Smolensk (western Russia), Sergei Antoufiev.
Religious ceremonies and street rallies began on Sunday morning to commemorate the Polish air disaster in which Polish President Lech Kaczynski and 95 other people died a year ago at Smolensk in Russia.
Divided on the causes of this accident and the ongoing investigations in Russia and Poland, the Poles can follow two separate programs of celebrations: the official program and one that was prepared by the conservative opposition of Jaroslaw Kaczynski, twin brother the late president.
At 6:41 GMT (exact time of the crash a year ago), the head of state Bronislaw Komorowski and Prime Minister Donald Tusk laid a wreath before a plaque commemorating the victims of the accident at the military church in Warsaw.
Meanwhile, Jaroslaw Kaczynski, who decided to boycott official ceremonies, laid a wreath at the presidential palace, amid a crowd of enthusiastic supporters.
Mr.Kaczynski sharply criticized the government for letting Russia lead the investigation and not to have rejected the findings.
Supporters of his party Law and Justice announced on Sunday at least four events to commemorate the victims of the disaster, 6:00 a.m. to 10:00 p.m. local outside the presidential palace in Warsaw, including a torchlight march at around 18:00 GMT.
In the midst of white and red national flags, a wooden cross was erected birch outside the presidential palace with, at its foot, a model of the presidential train Tupolev crashed, broke in two.
Other crosses, large and small, and the candles have been introduced to that place that initially after the accident, had been the symbol of the unity of Poles in mourning, before becoming one of the divisions .
Protesters waved banners calling on the authorities to shed full light on this accident.The thesis of a conspiracy and an attack was mentioned on the leaflets in the crowd that the Polish prosecutors have definitely ruled recently.
The Polish authorities have scheduled a ceremony before a memorial to victims of the accident at Powazki cemetery in Warsaw, followed by a solemn Mass at the cathedral and a large concert at the National Theatre.
A series of ceremonies and celebrations are planned Sunday across Poland.
The Polish and Russian presidents, Bronislaw Komorowski and Dmitri Medvedev will meet Monday at Smolensk, the scene of the accident.
The Tupolev 154, carrying 10 April 2010 President Lech Kaczynski and other senior Polish officials, crashed while attempting to land in heavy fog at Smolensk, killing its 96 occupants.
The Polish delegation went to the ceremonies of the 70th anniversary of the massacre of about 22,000 Polish officers prisoners of the Red Army, including at Katyn near Smolensk.
