0522 GMT November 22, 2019
Hospital patients and the elderly are among those affected in what will be Germany's biggest evacuation in recent history, abcnews.go.com wrote.
Construction workers found the 1.8-ton (4,000-pound) British bomb Tuesday. Officials have ordered residents to evacuate homes within a 1.5-kilometer (nearly a mile) radius of the site in Germany's financial capital.
Dozens of ambulances lined up before driving to pick up anyone unable to independently leave the danger zone.
Similar operations are still common 72 years after the war ended. About 20,000 people were evacuated from the western city of Koblenz before specialists disarmed a 500-kilogram US bomb Saturday.