Police are investigating a burgeoning string of robberies involving small business owners in Colorado Springs.

The police department believes the victims have been followed home after closing their shops. Twice, the victims were robbed inside their garages before they even had a chance to shut their garage door. In the third case, police say a man rang the doorbell. The victim already had a feeling someone had followed her home.

No one has been injured, but police say the suspects carried a gun each time.

The first robbery happened April 22; the most recent on May 7th. Each one has happened between 11 p.m. and 1 a.m. The victims' businesses are all located on the southeast side of town.

The suspects in the robberies have been described as black males between 20-30 years old, all about 5-foot-8 with medium builds. Police say there was one robbery in which there were three men involved, and one may have been white or Hispanic.

All of the victims are Asian or of Asian descent, according to police.

Police urge business owners to be vigilant about suspicious activity near their stores and restaurants. Anyone who sees any unusual activity is asked to call CSPD at 444-7000. Police also ask anyone with information to come forward; those who think they may know something can call CSPD or, to stay anonymous, Crime Stoppers at 634-STOP.