Hazardous materials crews responded in Greendale twice in three hours Friday night.
The hazmat team arrived at the fire and police building and are dealing with two separate fentanyl incidents according to 911 calls.
The hazmat team was also called to the fire and police department. Milwaukee Fire confirmed it was a fentanyl-related call.
Authorities said they responded to a "precautionary decontamination" at the police building.
We also know that South Ridge confirmed Greendale officers responded to a situation there. Officers were seen at the Kohl’s parking lot and were focused on a car.