NEW YORK (CBS 2) — Police have a new clue Saturday in the string of serial robberies on the Upper East Side.

Authorities said a surveillance camera in the neighborhood captured an image of the suspect who they said stalked and cornered at least five women since Wednesday.

Police said he approaches the victims in building lobbies, claiming to have a knife, then demands cash and jewelry.

Police were also circulating a sketch of the suspect whose most recent attacks came on Thanksgiving Day.

“You wouldn’t think you’re going to get attacked during the day, but living in New York, I guess you have to keep your guard up at all times,” said Andrea Strong of the Upper East Side.

In three of the attacks the victim screamed and the mugger fled without taking anything.

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