Police are looking for a person they say approached three different women last week and threatened to kill them if they didn't give up their MetroCards.
The separate incidents occurred in Lower Manhattan over the span of two days last week, according to the NYPD.
The first incident was Wednesday when a stranger approached a 32-year-old woman at the Whitehall Street N and R subway station around 10:15 a.m. The suspect grabbed the woman and threatened to kill her if she didn't hand over her MetroCard. The woman complied and the suspect ran off.
Two more almost-identical incidents occurred fewer than 24-hours later in the same area. The suspect, believed to be a man, approached a 78-year-old woman and then a 39-year-old woman, each time fleeing the area once they handed over their cards.
No injuries were reported in any of the robberies.
Police have released surveillance footage from the incidents. They are asking anyone with more information about the incidents to call Crime Stoppers at 1-800-577-TIPS.