Tomasz Michalski (R) holds the hand of his pregnant wife Dorota at the hospital in Bytom near Katowice January 30, 2006. Michalski was injured during the collapse of the roof of the exhibition hall in the southern city of Chorzow near Katowiceon Sunday. The government has ordered the temporary closure of some large buildings fearing their roofs may collapse in a repeat of a weekend disaster that killed 67 people, Prime Minister Kazimierz Marcinkiewicz said on Monday. REUTERS/Katarina Stoltz