By CBSNewYork Team

NEW YORK (CBSNewYork) – The NYPD wants your help putting a stop to a series of robberies of e-bike riders from a motorcycle.

Investigators say the suspects stop the cyclists, threaten them with a knife or gun and then steal the e-bikes.

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(credit: NYPD)

There have been six reported incidents on the Upper East Side and Harlem since February.

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Victims were punched and kicked during the robberies, but so far no one has been seriously injured.

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Anyone with any information is asked to call the NYPD’s Crime Stoppers hotline at 1-800-577-TIPS (8477), or for Spanish, 1-888-57-PISTA (74782). You can also submit a tip via their website or via DM on Twitter, @NYPDTips. All calls are kept confidential.

CBSNewYork Team