Photo: Karol Makurat/REPORTER/East News Celebrations marking the 11th anniversary of Smolensk air disaster, which killed 96 Polish officials including Polish president Lech Kaczynski, on April 10, 2021 in Warsaw, Poland. Pictured: A demonstrator confronts a police officer securing the official ceremony at the Monument to the Victims of Smolensk Tragedy in Warsaw's centre. The celebrations were met with demonstrations organized by business owners protesting over coronavirus lockdown measures.