On April 13 (Sunday), Marek Kuchciński, Deputy Speaker of the Sejm, took part in the commemoration of the Katyn massacre and the Smolensk catastrophe in Brzozów.

The ceremony started with the Holy Mass in the Collegiate Church of the Transfiguration of the Lord. After the mass, the participants went to the Katyn Cross and to the plaque commemorating the death of the President of the Republic of Poland Lech Kaczynski and his wife, as well as members of parliament, commanders of the armed forces, representatives of Katyn Families and other people who died in the plane crash.

At the site, 96 candles were lit in memory of the victims of the disaster.

The next item was the laying of flowers and speeches by the invited guests.