Poland's parliament is to hold a special session later today to discuss the plane crash in which the country's president Lech Kaczynski was killed. Meanwhile, the body of Poland's First Lady, Maria Kaczynska, is being flown to Warsaw to lie in state alongside that of her husband, President Lech Kaczynski. Poland has seen an outpouring of grief since the couple and scores of other top Polish officials died in a plane crash in western Russia on Saturday. President Kaczynski's body was brought back to Poland on Sunday. The funerals are expected to be held at the weekend. The bodies of the first couple will kept for public viewing today. Ninety-six people were killed when the plane clipped tree-tops as it tried to land at a former air base north of Smolensk city.