UPDATE 2:45 P.M.
The person suspected of a workplace shooting in Wisconsin has died after being shot by police.
The incident at WTS Paradigm in Middleton, a suburb of Madison, left four people injured including the person suspected of carrying out the attack.
That suspect has died, Middleton Police Chief Chuck Foulke said, and there are no other suspects in the attack.
WTS Paradigm is a software company. WKOW has more details on how the shooting unfolded.
At least four people have been injured in a mass shooting at an office building near Madison, Wisconsin.
Middleton police sent out a warning of an active shooter at 11:16 a.m. at the 1800 block of Deming Way in the City of Middleton, which is a neighboring city of Madison in south-central Wisconsin.
The shooting is no longer active, with the suspected shooter also injured and in critical condition, according to CNN, which cites city officials.
A hospital official has confirmed four injuries from the shooting, according to multiple reports. At this point no one has been confirmed killed.
The first 911 calls came in at 10:25 a.m. CT.
This is a developing story.