"From the information that we and our allies have, it was an S-300 rocket made in the Soviet Union, an old rocket and there is no evidence that it was launched by the Russian side," Andrzej Duda said. "It is highly probable that it was fired by Ukrainian anti-aircraft defense."

(Reporting by Alan Charlish, Pawel Florkiewicz, Anna Koper; Editing by Toby Chopra)