MENOMONEE FALLS, Wis. (CBS 58) -- The Menomonee Falls Police Department is investigating a firearm discharge that reportedly took place outside a FedEx facility following an altercation between employees. No injuries were reported, and the suspect fled the scene on foot.

Police say the incident happened Monday, June 2 shortly before 4 a.m., when officers responded to the facility on County Line Road. According to police, no one was struck by gunfire and there is no known threat to public safety.

Authorities are asking for assistance from area businesses or residents with surveillance footage that may aid the investigation. Video can be submitted by contacting the department’s dispatch center at (262) 446-5070.

Police confirmed the investigation is still active.