NEW YORK (CBSNewYork) — Police are looking for help in identifying and finding a suspect wanted in a series of crimes, including a pair of robberies and grand larcenies.

Authorities said the suspect took cash from an 89-year-old woman after snatching her purse on Dec. 3.

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1010 WINS’ Glenn Schuck reports

Also that day the suspect is also accused of shoving a 68-year-old woman to the ground and grabbing her purse as she left a post office in front of 830 Magenta St.

A day later, police said the suspect followed a 78-year-old woman into the elevator of her building before grabbing her wrist and taking cash and a money order from her pocket.

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The suspect is also believed responsible for a Dec. 5 attack in which a 60-year-old woman had an envelope containing cash snatched from her, police said.

Authorities described the suspect as a heavy-set black male, who was wearing a dark-colored jacket and black hat.

Anyone with information in regards to these incidents is asked to call Crime stoppers at 1-800-577-TIPS (8477). The public can also submit their tips by logging onto the Crime stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting their tips to 274637 (CRIMES) then enter TIP577.

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All calls are kept strictly confidential.