UN chief Ban Ki-Moon and world leaders including Chinese President Hu Jintao, US President Barack Obama and others have sent their condolences to Poland over the plane crash.

Gordon Brown, British Prime Minister, said, "I think the whole world will be saddened and in sorrow as a result of this tragic death in a plane crash of President Kaczynski and his wife Maria and the party that were with him."

Angela Merkel, German Chancellor, said, "It was with great sadness we heard of the plane crash involving Polish President, Lech Kaczynski. Our thoughts and compassion goes to the President's family, as well with the families of the many victims of the disaster. It is a political and human tragedy for our neighbors in Poland."