In Germany, more than 50,000 people have been ordered to leave their homes in the city of Hanover ahead of a a large-scale operation to defuse unexploded bombs dating back to World War II. <br/><br/>According to officials, a total of 13 unexploded ordnances from the 1940s, found at a construction site, are expected to be removed from the northwestern city today. <br/><br/>The evacuation, the second-biggest since 1945, involves three heavily-populated areas of Hanover, which account for 10 percent of the city's entire population. <br/><br/>Early evacuations started on Friday as residents of senior care facilities were relocated to other parts of the city.