Thousands of residents were evacuated in Tokyo on Sunday while authorities dug up an unexploded 550-pound bomb, believed to have been dropped by the United States during World War II, a local official said.
The bomb, about 14 inches in diameter and 47 inches long, was detected earlier this month in a residential area in Tokyo's Katsushika ward by Self-Defense Force investigators, said Katsushika spokesman Takanori Kato.
