Prime Minister Donald Tusk will outline today progress, or otherwise, in the investigation into the Smolensk plane crash which killed President Kaczynski and 95 others on April 10.

The Prime Minister, together with relevant ministers, will present findings of the first stage of the Polish investigation and the activities of all committees and agencies trying to discover the circumstances which led to the accident in western Russia.

Representatives of the Attorney General and the Chief Military Prosecutor's Office said on Tuesday that they are looking into all possible causes of the presidential plane crash. Both the Polish and Russian investigations are looking into actions "of people responsible for managing air traffic and taking into account possible errors of flight control, including the control tower at the airport in Smolensk,” says a joint communiqué. (pg)