It happened on Friday around 12 p.m. at the intersection of Jerome and Amherst avenues.
Police say an 80-year-old man from Cinnaminson and his 90-year-old passenger were attempting to make a left turn onto Amherst Avenue when the vehicle collided with another driver.
The 90-year-old woman was transported to an area hospital where she later died.
No other injuries were reported.
No charges have been filed at this time.