Lampedusa, June 18 - An estimated 1,000 immigrants were at a southern Italian holding center with a maximum occupancy of 300 people on Tuesday. The latest arrivals, 259 migrants, came late Monday to the island of Lampedusa, which is between Sicily and North Africa. Officials were working to move the migrants to different facilities. In the meantime people were seen overcrowding balconies and staircases at the Lampedusa center. The number of migrants to Italy increases annually in the summer months as sea conditions improve. However large numbers of people, usually packed inside unsafe boats, still die en route.