The Retek building in downtown Minneapolis was put on lockdown late Friday morning after police got reports of shots fired, WCCO reported. But building sweeps produced no evidence of a shooting, local media reported. No victims were identified, nor was any shooter been found.
The all-clear came at about 1:30 p.m., the city of Minneapolis tweeted.
It may have been a noise in the ductwork, KARE 11 tweeted.
A pregnant woman was wheeled out on a gurney, KARE's John Croman tweeted.
In a 12:20 p.m. briefing, Sgt. Steve McCarty said that the report of shots fired came from someone on the 10th floor, which he believes is a Target office, the Star Tribune reported. Security then notified 911.
The building is part of the Target campus, KARE 11 reports.
St. Thomas sent a tweet of warning: