Middleton, WI – Police have responded to a report of an active shooter in an office building in a suburb of Madison.

A WMTV reporter said he talked to his friend named “Jess” who works inside the building, and Jess told him that someone who works in the building opened fire and shot multiple people.

He also said that the shooter was down, WMTV reported. That report is unconfirmed.

The Wisconsin State Journal reported that at least 40 police vehicles and ambulances from multiple jurisdictions had responded to 1850 Deming Way, which houses companies that include Esker Software and WTS Paradigm.

The 911 Communications Center said they received the first 911 call at about 10:30 a.m., the Wisconsin State Journal reported.

Authorities have set up a perimeter around the building and have started to bring people out of the building, which continues to be on lockdown.

The Wisconsin State Journal reported that one woman was taken out of the building screaming it was “a devastating loss” as she was being held up by another person.

However, the Dane County Medical Examiner’s Office told the Wisconsin State Journal that nobody from their office has been called to the scene as of 11:10 a.m.

The Middleton Police sent out a tweet notifying residents of the “active shooter in the area” and warning them to stay inside. Alerts were also sent out to Madison College.

At this time, it is unclear if there are any fatalities, Insider reported. No information has been released through officials channels regarding the suspect.

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