CAZENOVIA, Wis. (AP) -- Authorities say a principal has been shot at a school complex in southwestern Wisconsin, but all the students are safe and unharmed.

A Sauk County Sheriff's Captain Michael Haifeman says a suspect is in custody and the principal has been hospitalized. His condition is unknown. Haifeman says he was shot several times.

Authorities say the school remains locked down, but no other suspects are believed involved.

The school is in the town of Cazenovia, a community of about 300 about an hour northwest of Madison.