About 45,000 people were evacuated from their homes in Koblenz, Germany, Sunday while authorities worked to defuse a 2-ton, World War II-era bomb, according to UPI. The BBC reported officials became aware of the massive British bomb last week when it was exposed by falling water levels in the Rhine River during the city's recent dry spell. Everyone living within a 1.25-mile radius of the bomb site was ordered to leave. The evacuation included patients at hospitals and nursing homes who were relocated Friday and Saturday. The Rhein-Zeitung newspaper reported affected Koblenz residents were given a final warning to get out Sunday morning by police officers using loudspeakers. The newspaper said authorities' best guess is that the bomb was dropped during an Allied air attack in November 1944 when the city endured its fiercest attacks and was almost destroyed.