Former Polish Prime Minister Donald Tusk, who is now a top European Union official, told a court in Warsaw on April 23 that he is not politically responsible for planning a 2010 visit to western Russia that ended with the president’s plane crashing, killing 96 people aboard.

Tusk, who is president of the European Council and chairs summits of EU leaders, was prime minister of Poland when the plane crashed near Smolensk, killing then-President Lech Kaczyński and dozens of top military and political figures.

As reported by Radio Poland online, Tusk was summoned to testify as a witness in a trial in which the former head of the Prime Minister’s Office, Tomasz Arabski, and four other officials, are accused of failings over the way the presidential flight was organised.