Posted: Saturday, October 6, 2012 --- 2:24p.m.

WAUSAU, Wis. (AP) -- An 18-year-old man carrying a loaded handgun has been arrested after a threat that locked down a central Wisconsin school.

Wausau West High School went on a lockdown Friday for about an hour after a female student received a threatening text message from the 18-year-old, who was not a student at the school.

The female student notified an administrator. Within about 20 minutes police had formed a perimeter around the school.

The man, from Rothschild, was arrested on tentative charges of threats to injure and misdemeanor charges of carrying a concealed weapon and disorderly conduct.

The Wausau Daily Herald reports (http://wdhne.ws/SD1UFv ) he's scheduled to make a court appearance Monday.

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Information from: Wausau Daily Herald, http://www.wausaudailyherald.com

Copyright 2012. The Associated Press.