An Aussie on a social notworking site may have ended up locking down down all the schools in the busy midwestern US city of Minneapolis.

A phone call early on Wednesday alerted the officials that someone  planned to "shoot up" an unspecified school and then kill himself. Schools in the area were put on a "code yellow" lockdown as a precautionary measure while investigating the validity of the threat. More than 34,000 students at 60 schools in the Minneapolis public school system, meant children were kept in their classrooms while outside visitors were strictly limited.

However the entire threat appears to have been spawned out of social notworking sites with the schools being contacted because of a threat that people saw posted there.

The source of the original story was an Australian who was unlikely to get to the US and shoot mid-western school kids. However US people reading the material felt they needed to warn the authorities.