Italian authorities evacuated 4,000 people from the center of the northern city of Bolzano on Sunday to defuse a World War II bomb found during construction. An alarm signaled the all-clear to reopen the city center just before noon, as well as a nearby north-south highway and rail line both connecting Italy with Austria and Germany. The online news site Neue Suedtiroler Tageszeitung said after being defused, the bomb was brought to a secure site nearby for a controlled explosion.