The police arrested a man suspected of robbing a convenience store on First Avenue, but his accomplice — who is wanted for at least 16 other heists — is still at large.

The police said that 30-year-old Duwayne Bascom and another man entered the store at 111 First Avenue on Nov. 21 at around 8:40 p.m., demanded an unknown amount of money and then fled with the cash. But Mr. Bascom has not yet been tied to any of the other robberies, three of which occurred around the East Village.

In the first, the suspect entered a Subway on Second Avenue between St. Marks Place and Ninth Street on Nov. 9 at around 2:25 a.m., brandished a knife and demanded money from the cashier. Police did not say how much money he received.

Stephen Rex Brown The Subway on Second Avenue that was robbed in November.

In the second incident in the neighborhood, the suspect entered the Taehama grocery store on East Houston Street between Orchard and Ludlow Streets on Dec. 10 at around 1:20 a.m., jumped behind the counter and stole an undetermined amount of money from the register.

In the final heist, the suspect robbed the register of the Brooklyn Industries on Broadway between 11th and 12th Streets on Dec. 16 at around 9:30 p.m.

The other incidents occurred anywhere from Lower Manhattan to Chelsea.

This post has been revised to reflect the following correction:

Correction: 5:12 p.m.

An earlier version of this post misstated the location of the Subway. It is on Second Avenue between St. Marks Place and Ninth Street, not Ninth Avenue.