Updated: 6:35 p.m. on June 3, 2022

KIEL, Wis. (CBS 58) -- Kiel police are still investigating a series of threats even after the school district's Board of Education closed its Title IX investigation. 

Police say multiple agencies have been looking into these threats for more than two weeks. The suspect has consistently called for the Title IX investigation to be dropped. 

On Thursday, school board officials announced their investigation at the middle school was over. But police say another email was sent Friday morning, this time listing several government buildings, private businesses and even locations in neighboring New Holstein. 

Officials did not find anything in their precautionary searches.

Updated: 2:59 p.m. on June 1, 2022

KIEL, Wis. (CBS 58) -- The City of Kiel Police Department says they have received another threat, marking the sixth in recent days.

Police say the threat indicates that if the Kiel Area School District does not drop the Title IX investigation by Friday, June 3, multiple locations in the city will be targeted, including schools, roads, utility stations, city buildings, the police department, stores and the wastewater treatment plant. 

The City of Kiel Emergency Management Team is working with local, state and federal authorities in planning a response. 

Posted: 6:25 p.m. on May 31, 2022

KIEL, Wis. (CBS 58) -- An investigation is underway after the Kiel Police Department received an email with a fifth bomb threat Tuesday, May 31. 

Police say the threat was directed at Kiel Middle School, Kiel High School, the Kiel School District office, Zielanis Elementary School, Kiel City Hall and the Kiel Public Library. 

They say the threat once again referred to the ongoing Title IX investigation being conducted by the Kiel Area School District. 

As a precaution, all locations were evacuated and buildings were searched by law enforcement and the Kiel Fire Department. 

Officials say no devices were located and the buildings were cleared. 

The Wisconsin Department of Justice and FBI were notified of the fifth threat and have been assisting in an investigation to determine the source of the threats since the first was received last week. 

On Monday, May 30, several residents of Kiel held their own Memorial Day parade after the threats caused the city's parade to be canceled.