14-year-old suspect dead after active shooter reported outside Wisconsin middle school: Sources

A 14-year-old suspect is dead following a confrontation with police Wednesday after an active shooter was reported outside a Wisconsin middle school, sources told ABC News.

The teen had approached Mount Horeb Middle School with what appeared to be a long gun, the sources said.

A vehicle associated with the suspect is being searched for evidence by bomb technicians, according to sources.

The Mount Horeb Area School District said police responded to help "scope out" an active shooter at the school.