It happened on Tuesday, January 26 at 1 p.m. near Hudson Parkway and Mosholu Parkway in the Riverdale section.
The 28-year-old livery driver spotted the vehicle on the side of the road and stopped to offer his help.
When the man inside the car got into the livery car, he took out a gun and demanded money from the driver.
The livery driver was then ordered to drive to a nearby bank. The robber forced the driver to take out $1,400 from his bank account and give it to him.
Once he had the money, the robber got out of the livery car and got into a gray SUV that was driven by another person.
The victim was not injured.
The robber is described as 20-30 years old.
Anyone with information in regard to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
ALSO READ: Staten Island Chuck predicts early spring on Groundhog Day
Groundhog Day: Staten Island Chuck begs to differ
----------
* More Bronx news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube