2 in custody after armed robbery on NW Side

A Chicago police officer was injured this morning after she was bitten by a dog during an armed robbery investigation that nabbed two people in the North Park neighborhood.
The female officer was taken to Swedish Covenant Hospital for non-life threatening injuries.
The officer is a canine unit officer but the animal that attacked her is not believed to be her police dog.
The officer was responding with other police to the area on the Northwest Side at about 3:49 a.m. when a woman was robbed at gun point on the 4500 block of North Christiana Avenue in the Albany Park neighborhood.
After robbing the woman, the two robbers fled and a police called for other units to canvas the area. The canine unit was dispatched to search the area.
One of the people was tracked to the 5400 block of North Spaulding Avenue in the North Park neighborhood where he was placed in custody.
On the 5300 block of North Kimball Avenue, found the person armed with a handgun. During the search, the person exchanged gunfire with police but no one was injured in the shooting,