2 cars drop 3 gunshot victims at hospital after Minneapolis shooting

A Minneapolis police officer was at North Memorial Medical Center investigating an unrelated case when two cars pulled up and dropped off two men and a teenager with gunshot wounds. Two of the victims had non-life-threatening injuries, but one had very serious injuries.  
The shooting had not yet been reported to police, but there was a ShotSpotter activation in the area of Broadway and 4th Street.  The early investigation indicates this is where the shooting occurred.
This is not believed to be a random incident.  No one is in custody at this time.
Anyone with information is asked to call CrimeStoppers at 1-800-222-TIPS (8477) or send an anonymous tip to CRIMES (274637) and begin message with: TIP674 or call the MPD tip line at 612-692-TIPS (8477).  The case numbers are 15-247616 and 15-247629.