A lockdown has ended at Minneapolis Public Schools after police say a threat made on a social networking site turned out to be not credible. The district started Wednesday keeping its more than 33,000 students indoors and all exterior doors locked because of the Internet ...

A vague threat apparently posted by an Australian on two social networking sites led to the lockdown on Wednesday of all schools in the busy midwestern US city of Minneapolis, officials said. City officials received a phone call early Wednesday alerting them that a young man planned to "shoot up" an unspecified school and then kill himself, police said. Officials ...

All schools across the busy midwestern US city of Minneapolis were put on lockdown early Wednesday after a vague threat was posted on two social networking sites, a spokeswoman said. The lockdown, which affected around 50 schools in the Minneapolis public school district, meant children were told to remain in their classrooms while access to outside visitors was strictly limited ...