Leader of the Polish Law and Justice (PiS) ruling party Jaroslaw Kaczynski (L) lays a wreath at the monument of late President Lech Kaczynski at Pilsudski Square in Warsaw, Poland, on April 10, 2020, during a commemoration ceremony for the victims of the air crash of Polish presidential jet in Russia 10 years ago, amidst the new coronavirus COVID-19 pandemic. - Poland held a scaled-back memorial on Friday for the air crash that killed president Lech Kaczynski and dozens of others in Russia a decade ago, amid a lockdown to control coronavirus. Only Jaroslaw Kaczynski, brother of the late president and today head of the ruling conservative party (PiS), Morawiecki and a handful of senior officials laid wreaths at the Warsaw monument for those who lost their lives on April 10, 2010. (Photo by JANEK SKARZYNSKI / AFP)