(Lomira) A bomb threat was reported Thursday night at Quad Graphics. The Dodge County Sheriff’s Office says multiple law enforcement agencies responded to the facility on State Highway 175 in the Town of Lomira around 9:15pm after an employee reported finding a note that referred to a bomb in the building. The building was evacuated and employees arriving at work were not allowed inside. The grounds were searched by multiple explosive detection K9 teams. No explosives were located during the search. According to a press release issued at 3:15am, employees were allowed to return to work. The Dodge County Sheriff’s Office is investigating the source of the threats. There were no reports of injuries or explosions.