NEW YORK (CBSNewYork) – A group of men on bicycles surrounded a woman and stole her purse Friday in Manhattan, police say.

The robbery happened around 6 p.m. on Pier 84 near 12th Avenue.

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Police said the suspects approached the 41-year-old victim, and one man displayed a gun and demanded her money.

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The woman handed over her purse, containing $60, credit cards and a cellphone.

Police said her credit cards were later used to buy more than $640 worth of merchandise from three CVS pharmacies and a smoke shop.

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Anyone with information about the robbery is asked to call the NYPD’s Crime Stoppers hotline at 1-800-577-TIPS (8477) or 1-888-57-PISTA (74782) for Spanish. You can also submit a tip via the Crime Stoppers website, by tweeting @NYPDTips or by texting 274637.