Police say on Saturday, May 14th at 8:30 a.m., the man followed an 88-year-old woman and her elderly brother from an atm.
When they got to East 178th Street, the suspect pushed the woman to the ground, took her money and ran away.
The woman wasn't seriously hurt.
The suspect is described as a Hispanic man in his 20's, 5'5" tall, with a ponytail, and was wearing a dark-colored hooded sweatshirt.
Anyone with information is asked to call Crime Stoppers at (800) 577-TIPS (8477).