Shooting reported at Middleton, Wisconsin office building, several injured

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At least four people were injured in a reported shooting at a Middleton, Wisconsin, office building, according to officials.

Middleton Police and the Bureau of Alcohol, Tobacco, Firearms and Explosives tweeted they were “responding to reports of an active shooter.”

UW Health University Hospital confirmed they received four patients from the shooting, according to Director of Media Relations Lisa Brunette.

Police received the call at 10:25 a.m. CDT (11:25 a.m. ET).

Judy Lahmers, a business analyst at WTS Paradigm where the shooting occurred, told the Associated Press that she was working at her desk when she heard the gunshots. Lahmers ran out of the building and hid behind a car.

“I’m not looking back, I’m running as fast as I can. You just wonder, ‘Do you hide or do you run?'” she said.

Leonard Peace, public affairs officer for the Federal Bureau of Investigations Milwaukee Division, told NBC News that agents were assisting local law enforcement, but could not give more information.

Gov. Scott Walker tweeted that his office was “closely following this situation.”

“Our thanks go out to first responders on the scene,” Walker wrote.

Middleton is just over 90 miles west of Milwaukee.

This is a developing story. Check back for more information.