An outbreak of legionnaires' disease is responsible for the deaths of two people in east-end Montreal, according to public health officials. At a news conference Wednesday, officials said they have identified 10 cases of the disease since mid-June, including the deaths of two people over the age of 65. The area of concern is bordered by Pie-IX Boulevard to the west, Highway 25 to the east, Highway 40 to the north and the Saint-Lawrence River to the south.