Police said in all three incidents, one or two males approach a victim on the street, grab the cell phone from the victim's hand, and flee on foot or inside a waiting vehicle.
Police described the getaway vehicle as a blue Nissan Sentra.
Police said so far the suspects have been involved in three reported incidents:
February 3 at 3 p.m. in the 5100-block of South Cornell Avenue
February 16 at 3 p.m. in the 1600-block of Hyde Park Boulevard
February 21 at 5:45 p.m. in the 1700-block of East 55th Street
In each case the suspects are described as men between 20 and 25 years old wearing black masks.
If you have any information, contact Area One detectives at 312-747-8384.
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