The Greendale High School homecoming dance has been moved to Greendale Middle School in response to a message discovered in a boys restroom that made reference to a vague threat at the high school on Saturday.
The homecoming football game and bonfire are going on as planned on Friday night with increased security.
Greendale High School will be locked down on Saturday, according to FOX6 News.
While the pep assembly was held as scheduled on Friday, the lunch period and hallways at the high school were restricted.
"Today your children and our staff did an amazing job in focusing on both the school and also the fun associated with homecoming," said Greendale High School Principal Steve Lodes in a recorded message to families.
Lodes did a walk-through of the middle school Friday and determined it was an appropriate and safe venue. The dance will run from 8 to 11 p.m. A message will be sent to Greendale families with information about the dance no later than 10 a.m. Saturday.
The investigation into the threat is ongoing. Anyone with information regarding the person responsible for writing this message are asked to contact Lodes immediately at (414) 423-0110, Ext. 4302. An anonymous tip line is available by calling (866) 373-6227.
In his message, which was provided to Patch by FOX6, Lodes said:
"I'm continually impressed by the collective response of our students and families as your positive attitudes and trust allows the administration to focus on bringing situations like this to a hopeful resolution that allows Greendale High School to be a place where we take every precaution that does not allow this type of behavior to detract from our school experiences."
This is not the first time this year a threat was made on school grounds. In March, a bomb threat was made as a prank by a few teenage girls who were later arrested.