Milwaukee mass shooting: Seven dead after gunman goes on killing spree at beer brewery
Multiple sources from local media have confirmed several people have died after a gunman opened fire in the building.
Miluwakee police earlier said they were investigating a "critical incident" following the events at the MillerCoors beer brewing company.
There were claims of an active shooter situation at the site.
"Any additional information is appreciated."
The company urged its employers to find a safe place to hide as reports emerged of an active shooter.
It told employees via email there was an active shooter located in or near South Packaging, Building 4, second-floor stairwell.
One man, James Boyles, told local news his wife, Lasonya Ragdales was stuck inside.
She is locked inside an office room with co-workers, texting her husband from inside the building.
Police responsed at 2:11pm local time to 4115 W. State Street for a report of a shooting.
It has been said officers from the Milwaukee County Sheriff's Office, Marquette University Police Department and US Marshals are also responding to the incident.
Members of the public have been asked to stay away from the cordoned off scene.
Molson Coors tweeted: "There is an active situation at our Milwaukee facility and we are working closely with the Milwaukee Police Department. Our top priority is our employees and we’ll provide updates in conjunction with the police as we are able."