On 12/19/11, at approximately 10:18 p.m., officers responded to a 911 call from the clerk at a mini-mart in the 9500 block of Aurora Av N. The clerk called 911 to report that he had just been robbed at gunpoint by 3 black males. Several patrol units responded and set up containment. A K-9 unit responded and attempted to track the suspects. The track ended nearby. This armed robbery is possibly related to another robbery that occurred earlier this evening in the South Pct.