MILWAUKEE - Milwaukee police say a 12-year-old boy is now under arrest in connection with an armed robbery along with two 17-year-olds.

Michael Cowart says he was robbed at gunpoint for $10 and a cell phone last week near N. 14 and Congress.

Less than an hour later, an observant police officer spotted a teen entering a nearby gas station wearing clothing matching one of the suspect's descriptions in the case. The officer became suspicious and followed him into the store.

The suspect was arrested, along with the two others the same day.

Both teens admitted to the crime and have been charged with Armed Robbery, the 12 year-old's case is pending in Children's Court.